examples/zigbee: use LicenseRef-Included as SPDX-License-Identifier

Examples for zigbee are using custom license, which is not present
on the SPDX license list. This was discussed on !16205 and a decision
was made that the examples will be put on check-copyright's ignore list.
SPDX has LicenseRef-[idstring] identifier for such cases, so let's try
to use it. In this particular case the LicenseRef-Included is used to
express that the full license text is included in the source file.
Note that the LicenseRef-Included is not part of SPDX. It's just
something I used. No change is needed on the check-copyright side.

Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>

examples/zigbee/esp_zigbee_gateway/main/esp_zigbee_gateway.c

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2021 Espressif Systems (Shanghai) CO LTD
- * All rights reserved.
+ * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
  *
+ * SPDX-License-Identifier: LicenseRef-Included
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:

examples/zigbee/esp_zigbee_gateway/main/esp_zigbee_gateway.h

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2021 Espressif Systems (Shanghai) CO LTD
- * All rights reserved.
+ * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
  *
+ * SPDX-License-Identifier: LicenseRef-Included
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:

examples/zigbee/esp_zigbee_rcp/main/esp_zigbee_rcp.c

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2021 Espressif Systems (Shanghai) CO LTD
- * All rights reserved.
+ * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
  *
+ * SPDX-License-Identifier: LicenseRef-Included
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:

examples/zigbee/esp_zigbee_rcp/main/esp_zigbee_rcp.h

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2021 Espressif Systems (Shanghai) CO LTD
- * All rights reserved.
+ * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
  *
+ * SPDX-License-Identifier: LicenseRef-Included
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:

examples/zigbee/light_sample/HA_on_off_light/main/esp_zb_light.c

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2021 Espressif Systems (Shanghai) CO LTD
- * All rights reserved.
+ * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
  *
+ * SPDX-License-Identifier: LicenseRef-Included
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:

examples/zigbee/light_sample/HA_on_off_light/main/esp_zb_light.h

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2021 Espressif Systems (Shanghai) CO LTD
- * All rights reserved.
+ * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
  *
+ * SPDX-License-Identifier: LicenseRef-Included
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:

examples/zigbee/light_sample/HA_on_off_light/main/light_driver.c

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2021 Espressif Systems (Shanghai) CO LTD
- * All rights reserved.
+ * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
  *
+ * SPDX-License-Identifier: LicenseRef-Included
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:

examples/zigbee/light_sample/HA_on_off_light/main/light_driver.h

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2021 Espressif Systems (Shanghai) CO LTD
- * All rights reserved.
+ * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
  *
+ * SPDX-License-Identifier: LicenseRef-Included
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:

examples/zigbee/light_sample/HA_on_off_switch/main/esp_zb_switch.c

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2021 Espressif Systems (Shanghai) CO LTD
- * All rights reserved.
+ * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
  *
+ * SPDX-License-Identifier: LicenseRef-Included
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:

examples/zigbee/light_sample/HA_on_off_switch/main/esp_zb_switch.h

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2021 Espressif Systems (Shanghai) CO LTD
- * All rights reserved.
+ * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
  *
+ * SPDX-License-Identifier: LicenseRef-Included
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:

examples/zigbee/light_sample/HA_on_off_switch/main/switch_driver.c

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2021 Espressif Systems (Shanghai) CO LTD
- * All rights reserved.
+ * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
  *
+ * SPDX-License-Identifier: LicenseRef-Included
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:

examples/zigbee/light_sample/HA_on_off_switch/main/switch_driver.h

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2021 Espressif Systems (Shanghai) CO LTD
- * All rights reserved.
+ * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
  *
+ * SPDX-License-Identifier: LicenseRef-Included
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:

tools/ci/check_copyright_config.yaml

@@ -166,6 +166,13 @@ protocol_examples_common_component:
     - CC0-1.0
   license_for_new_files: Unlicense OR CC0-1.0
 
+zigbee:
+  include:
+    - 'examples/zigbee/'
+  allowed_licenses:
+    - Apache-2.0
+    - LicenseRef-Included
+
 # files matching this section do not perform the check
 # file patterns starting with ! are negated, meaning files matching them won't match the section.
 ignore:
@@ -181,7 +188,6 @@ ignore:
     - components/bt/host/bluedroid/
     - '!components/bt/host/bluedroid/api/'
     - '!components/bt/host/bluedroid/btc/'
-    - examples/zigbee/
     - components/esp_local_ctrl/proto-c/
     - components/esp_local_ctrl/python/
     - components/protocomm/proto-c/