soc_caps: Introduce SOC_LEDC_SUPPORTED and SOC_I2C_SUPPORTED caps to IDF

Wrap the ledc, i2c source files with the new caps in CMakeLists and linker.lf.
This could avoid potential source file not found warning during linking time.

components/soc/esp32/include/soc/Kconfig.soc_caps.in

@@ -91,6 +91,14 @@ config SOC_SDM_SUPPORTED
     bool
     default y
 
+config SOC_LEDC_SUPPORTED
+    bool
+    default y
+
+config SOC_I2C_SUPPORTED
+    bool
+    default y
+
 config SOC_SUPPORT_COEXISTENCE
     bool
     default y

components/soc/esp32/include/soc/soc_caps.h

@@ -82,6 +82,8 @@
 #define SOC_I2S_SUPPORTED           1
 #define SOC_RMT_SUPPORTED           1
 #define SOC_SDM_SUPPORTED           1
+#define SOC_LEDC_SUPPORTED          1
+#define SOC_I2C_SUPPORTED           1
 #define SOC_SUPPORT_COEXISTENCE     1
 #define SOC_AES_SUPPORTED           1
 #define SOC_MPI_SUPPORTED           1