Merge branch 'bugfix/nimble_spp' into 'master'

NimBLE :  SPP example fails to build on Windows

See merge request espressif/esp-idf!16992

examples/bluetooth/nimble/ble_spp/spp_client/main/CMakeLists.txt

@@ -1,2 +1,2 @@
 idf_component_register(SRCS "main.c" "misc.c" "peer.c"
-                    INCLUDE_DIRS "$ENV{IDF_PATH}/components")
+                    INCLUDE_DIRS ".")

examples/bluetooth/nimble/ble_spp/spp_server/main/CMakeLists.txt

@@ -3,4 +3,4 @@ set(srcs "main.c"
         "misc.c")
 
 idf_component_register(SRCS "${srcs}"
-                    INCLUDE_DIRS "$ENV{IDF_PATH}/components")
+                    INCLUDE_DIRS ".")