[bsp][esp32]: reorganize ESP32C3 BSP layout

.github/ALL_BSP_COMPILE.json

@@ -459,7 +459,7 @@
       "RTT_BSP": "ESP32C3",
       "RTT_TOOL_CHAIN": "sourcery-riscv32-esp32",
       "SUB_RTT_BSP": [
-        "ESP32_C3"
+        "ESP/ESP32_C3"
       ]
     },
     {

bsp/ESP32_C3/Kconfig → bsp/ESP/ESP32_C3/Kconfig

@@ -8,4 +8,4 @@ PKGS_DIR := packages
 
 source "$(RTT_DIR)/Kconfig"
 osource "$PKGS_DIR/Kconfig"
-rsource "drivers/Kconfig"
+rsource "../libraries/drivers/Kconfig"

bsp/ESP/tools/sdk_dist.py

@@ -0,0 +1,17 @@
+import os
+import sys
+import shutil
+
+cwd_path = os.getcwd()
+sys.path.append(os.path.join(os.path.dirname(cwd_path), 'rt-thread', 'tools'))
+
+
+# BSP dist function
+def dist_do_building(BSP_ROOT, dist_dir):
+    from mkdist import bsp_copy_files
+    import rtconfig
+
+
+    print("=> copy bsp drivers")
+    bsp_copy_files(os.path.join(library_path, 'drivers'), os.path.join(library_dir, 'drivers'))
+    shutil.copyfile(os.path.join(library_path, 'Kconfig'), os.path.join(library_dir, 'Kconfig'))