ARM: dts: omap: add missing unit name to pbias regulator nodes

This patch fixes the following DTC warnings:

"pbias_regulator has a reg or ranges property, but no unit name"
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/dra7.dtsi

@@ -123,7 +123,7 @@ scm_conf: scm_conf@0 {
 					#size-cells = <1>;
 					ranges = <0 0x0 0x1400>;
 
-					pbias_regulator: pbias_regulator {
+					pbias_regulator: pbias_regulator@e00 {
 						compatible = "ti,pbias-dra7", "ti,pbias-omap";
 						reg = <0xe00 0x4>;
 						syscon = <&scm_conf>;

arch/arm/boot/dts/omap2430.dtsi

@@ -63,7 +63,7 @@ scm_clocks: clocks {
 						#size-cells = <0>;
 					};
 
-					pbias_regulator: pbias_regulator {
+					pbias_regulator: pbias_regulator@230 {
 						compatible = "ti,pbias-omap2", "ti,pbias-omap";
 						reg = <0x230 0x4>;
 						syscon = <&scm_conf>;

arch/arm/boot/dts/omap3.dtsi

@@ -119,7 +119,7 @@ scm_conf: scm_conf@270 {
 					#size-cells = <1>;
 					ranges = <0 0x270 0x330>;
 
-					pbias_regulator: pbias_regulator {
+					pbias_regulator: pbias_regulator@2b0 {
 						compatible = "ti,pbias-omap3", "ti,pbias-omap";
 						reg = <0x2b0 0x4>;
 						syscon = <&scm_conf>;

arch/arm/boot/dts/omap4.dtsi

@@ -198,7 +198,7 @@ omap4_padconf_global: omap4_padconf_global@5a0 {
 					#size-cells = <1>;
 					ranges = <0 0x5a0 0x170>;
 
-					pbias_regulator: pbias_regulator {
+					pbias_regulator: pbias_regulator@60 {
 						compatible = "ti,pbias-omap4", "ti,pbias-omap";
 						reg = <0x60 0x4>;
 						syscon = <&omap4_padconf_global>;

arch/arm/boot/dts/omap5.dtsi

@@ -187,7 +187,7 @@ omap5_padconf_global: omap5_padconf_global@5a0 {
 					#size-cells = <1>;
 					ranges = <0 0x5a0 0xec>;
 
-					pbias_regulator: pbias_regulator {
+					pbias_regulator: pbias_regulator@60 {
 						compatible = "ti,pbias-omap5", "ti,pbias-omap";
 						reg = <0x60 0x4>;
 						syscon = <&omap5_padconf_global>;