ARM: dts: ape6evm: Fix W=1 dtc warnings

Warning (unit_address_vs_reg): Node /regulator@0 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /regulator@1 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /regulator@2 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /regulator@3 has a unit name, but no reg property
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a73a4-ape6evm.dts

@@ -36,7 +36,7 @@ memory@200000000 {
 		reg = <2 0x00000000 0 0x40000000>;
 	};
 
-	vcc_mmc0: regulator@0 {
+	vcc_mmc0: regulator-mmc0 {
 		compatible = "regulator-fixed";
 		regulator-name = "MMC0 Vcc";
 		regulator-min-microvolt = <2800000>;
@@ -44,7 +44,7 @@ vcc_mmc0: regulator@0 {
 		regulator-always-on;
 	};
 
-	vcc_sdhi0: regulator@1 {
+	vcc_sdhi0: regulator-sdhi0 {
 		compatible = "regulator-fixed";
 
 		regulator-name = "SDHI0 Vcc";
@@ -56,7 +56,7 @@ vcc_sdhi0: regulator@1 {
 	};
 
 	/* Common 1.8V and 3.3V rails, used by several devices on APE6EVM */
-	ape6evm_fixed_1v8: regulator@2 {
+	ape6evm_fixed_1v8: regulator-1v8 {
 		compatible = "regulator-fixed";
 		regulator-name = "1V8";
 		regulator-min-microvolt = <1800000>;
@@ -64,7 +64,7 @@ ape6evm_fixed_1v8: regulator@2 {
 		regulator-always-on;
 	};
 
-	ape6evm_fixed_3v3: regulator@3 {
+	ape6evm_fixed_3v3: regulator-3v3 {
 		compatible = "regulator-fixed";
 		regulator-name = "3V3";
 		regulator-min-microvolt = <3300000>;