[DM/FEATURE] Support import SoC Pinctrl config

Signed-off-by: GuEe-GUI <[email protected]>

Author: GuEe-GUI

components/drivers/pinctrl/Kconfig

@@ -4,3 +4,6 @@ menuconfig RT_USING_PINCTRL
     depends on RT_USING_PIN
     default n
 
+if RT_USING_PINCTRL && SOC_DM_PINCTRL
+    source "$(RTT_DIR)/components/drivers/$(SOC_DM_PINCTRL_DIR)/Kconfig.dm"
+endif