dts: silabs: Fix invalid nodes in gpio node

The watchdog and rng nodes were a sub-node of the gpio node.
This commits corrects this issue for the relevant socs.

Signed-off-by: Christian Taedcke <[email protected]>

Author: chrta

dts/arm/silabs/efm32_jg_pg_12b.dtsi

@@ -225,32 +225,32 @@
 				#gpio-cells = <2>;
 				status = "disabled";
 			};
+		};
 
-			wdog0: wdog@40052000 {
-				compatible = "silabs,gecko-wdog";
-				reg = <0x40052000 0x2C>;
-				peripheral-id = <0>;
-				label = "WDOG0";
-				interrupts = <2 0>;
-				status = "disabled";
-			};
+		wdog0: wdog@40052000 {
+			compatible = "silabs,gecko-wdog";
+			reg = <0x40052000 0x2C>;
+			peripheral-id = <0>;
+			label = "WDOG0";
+			interrupts = <2 0>;
+			status = "disabled";
+		};
 
-			wdog1: wdog@40052400 {
-				compatible = "silabs,gecko-wdog";
-				reg = <0x40052400 0x2C>;
-				peripheral-id = <1>;
-				label = "WDOG1";
-				interrupts = <3 0>;
-				status = "disabled";
-			};
+		wdog1: wdog@40052400 {
+			compatible = "silabs,gecko-wdog";
+			reg = <0x40052400 0x2C>;
+			peripheral-id = <1>;
+			label = "WDOG1";
+			interrupts = <3 0>;
+			status = "disabled";
+		};
 
-			trng0: trng@4001d000 {
-				compatible = "silabs,gecko-trng";
-				reg = <0x4001d000 0x400>;
-				interrupts = <49 0>;
-				label = "TRNG0";
-				status = "disabled";
-			};
+		trng0: trng@4001d000 {
+			compatible = "silabs,gecko-trng";
+			reg = <0x4001d000 0x400>;
+			interrupts = <49 0>;
+			label = "TRNG0";
+			status = "disabled";
 		};
 	};
 };

dts/arm/silabs/efm32gg11b.dtsi

@@ -289,15 +289,14 @@
 				#gpio-cells = <2>;
 				status = "disabled";
 			};
+		};
 
-
-			trng0: trng@4001d000 {
-				compatible = "silabs,gecko-trng";
-				reg = <0x4001d000 0x400>;
-				interrupts = <66 0>;
-				label = "TRNG0";
-				status = "disabled";
-			};
+		trng0: trng@4001d000 {
+			compatible = "silabs,gecko-trng";
+			reg = <0x4001d000 0x400>;
+			interrupts = <66 0>;
+			label = "TRNG0";
+			status = "disabled";
 		};
 
 		wdog0: wdog@40052000 {