arm64: dts: marvell: Fixup internal-regs DT warning for Armada 37xx

internal-regs has a ranges property so the unit name should contain an
address.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

arch/arm64/boot/dts/marvell/armada-37xx.dtsi

@@ -91,7 +91,7 @@
 		#size-cells = <2>;
 		ranges;
 
-		internal-regs {
+		internal-regs@d0000000 {
 			#address-cells = <1>;
 			#size-cells = <1>;
 			compatible = "simple-bus";