ARM: dts: berlin2q-marvell-dmp: fix regulators' name

This patch fixes the following DTC warnings with W=1:

Warning (unit_address_vs_reg): Node /regulators/regulator@0 has a unit
name, but no reg property
Warning (unit_address_vs_reg): Node /regulators/regulator@1 has a unit
name, but no reg property
Warning (unit_address_vs_reg): Node /regulators/regulator@2 has a unit
name, but no reg property
Warning (unit_address_vs_reg): Node /regulators/regulator@3 has a unit
name, but no reg property
Warning (unit_address_vs_reg): Node /regulators/regulator@4 has a unit
name, but no reg property

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>

arch/arm/boot/dts/berlin2q-marvell-dmp.dts

@@ -58,7 +58,7 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		reg_usb0_vbus: regulator@0 {
+		reg_usb0_vbus: regulator_usb0 {
 			compatible = "regulator-fixed";
 			regulator-name = "usb0_vbus";
 			regulator-min-microvolt = <5000000>;
@@ -67,7 +67,7 @@
 			enable-active-high;
 		};
 
-		reg_usb1_vbus: regulator@1 {
+		reg_usb1_vbus: regulator_usb1 {
 			compatible = "regulator-fixed";
 			regulator-name = "usb1_vbus";
 			regulator-min-microvolt = <5000000>;
@@ -76,7 +76,7 @@
 			enable-active-high;
 		};
 
-		reg_usb2_vbus: regulator@2 {
+		reg_usb2_vbus: regulator_usb2 {
 			compatible = "regulator-fixed";
 			regulator-name = "usb2_vbus";
 			regulator-min-microvolt = <5000000>;
@@ -85,7 +85,7 @@
 			enable-active-high;
 		};
 
-		reg_sdio1_vmmc: regulator@3 {
+		reg_sdio1_vmmc: regulator_sdio1_vmmc {
 			compatible = "regulator-fixed";
 			regulator-min-microvolt = <3300000>;
 			regulator-max-microvolt = <3300000>;
@@ -95,7 +95,7 @@
 			gpio = <&portb 21 GPIO_ACTIVE_HIGH>;
 		};
 
-		reg_sdio1_vqmmc: regulator@4 {
+		reg_sdio1_vqmmc: regulator_sido1_vqmmc {
 			compatible = "regulator-gpio";
 			regulator-min-microvolt = <1800000>;
 			regulator-max-microvolt = <3300000>;