arm64: dts: amazon: alpine-v2: add missing io-fabric unit addresses

Add io-fabric unit address, because it has ranges property.  This also
fixes dtc W=1 warnings:

  alpine-v2.dtsi:153.13-229.5: Warning (simple_bus_reg): /soc/io-fabric: simple-bus unit address format error, expected "fc000000"
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240402200744.79349-1-krzk@kernel.org

arch/arm64/boot/dts/amazon/alpine-v2.dtsi

@@ -150,7 +150,7 @@ msix: msix@fbe00000 {
 			al,msi-num-spis = <160>;
 		};
 
-		io-fabric {
+		io-fabric@fc000000 {
 			compatible = "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;