arm64: dts: apm: shadowcat: move non-MMIO node out of soc

Non-MMIO devices, like fixed-clocks, should not be within simple-bus.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240402200818.79446-2-krzk@kernel.org

arch/arm64/boot/dts/apm/apm-shadowcat.dtsi

@@ -211,6 +211,13 @@ v2m15: v2m@f0000 {
 		};
 	};
 
+	refclk: refclk {
+		compatible = "fixed-clock";
+		#clock-cells = <1>;
+		clock-frequency = <100000000>;
+		clock-output-names = "refclk";
+	};
+
 	pmu {
 		compatible = "arm,armv8-pmuv3";
 		interrupts = <1 12 0xff04>;
@@ -236,13 +243,6 @@ clocks {
 			#size-cells = <2>;
 			ranges;
 
-			refclk: refclk {
-				compatible = "fixed-clock";
-				#clock-cells = <1>;
-				clock-frequency = <100000000>;
-				clock-output-names = "refclk";
-			};
-
 			pmdpll: pmdpll@170000f0 {
 				compatible = "apm,xgene-pcppll-v2-clock";
 				#clock-cells = <1>;