dts: arm: silabs-siwx91x: Update GPIO nodes

Add soc power domain and zephyr,pm-device-runtime-auto

Signed-off-by: Sai Santhosh Malae <[email protected]>

Author: smalae

dts/arm/silabs/siwg917.dtsi

@@ -183,6 +183,8 @@
 
 			#address-cells = <1>;
 			#size-cells = <0>;
+			power-domains = <&siwx91x_soc_pd>;
+			zephyr,pm-device-runtime-auto;
 
 			gpioa: gpio@0 {
 				compatible = "silabs,siwx91x-gpio-port";
@@ -235,6 +237,8 @@
 
 			#address-cells = <1>;
 			#size-cells = <0>;
+			power-domains = <&siwx91x_soc_pd>;
+			zephyr,pm-device-runtime-auto;
 
 			ulpgpio: ulpgpio@0 {
 				compatible = "silabs,siwx91x-gpio-port";