ARM: dts: exynos: Rename power domain nodes to "power-domain" in Exynos4

The device node name should reflect generic class of a device so rename
power domain nodes to "power-domain".  No functional change.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

arch/arm/boot/dts/exynos4.dtsi

@@ -111,28 +111,28 @@ mipi_phy: video-phy {
 			syscon = <&pmu_system_controller>;
 		};
 
-		pd_mfc: mfc-power-domain@10023c40 {
+		pd_mfc: power-domain@10023c40 {
 			compatible = "samsung,exynos4210-pd";
 			reg = <0x10023C40 0x20>;
 			#power-domain-cells = <0>;
 			label = "MFC";
 		};
 
-		pd_g3d: g3d-power-domain@10023c60 {
+		pd_g3d: power-domain@10023c60 {
 			compatible = "samsung,exynos4210-pd";
 			reg = <0x10023C60 0x20>;
 			#power-domain-cells = <0>;
 			label = "G3D";
 		};
 
-		pd_lcd0: lcd0-power-domain@10023c80 {
+		pd_lcd0: power-domain@10023c80 {
 			compatible = "samsung,exynos4210-pd";
 			reg = <0x10023C80 0x20>;
 			#power-domain-cells = <0>;
 			label = "LCD0";
 		};
 
-		pd_tv: tv-power-domain@10023c20 {
+		pd_tv: power-domain@10023c20 {
 			compatible = "samsung,exynos4210-pd";
 			reg = <0x10023C20 0x20>;
 			#power-domain-cells = <0>;
@@ -140,21 +140,21 @@ pd_tv: tv-power-domain@10023c20 {
 			label = "TV";
 		};
 
-		pd_cam: cam-power-domain@10023c00 {
+		pd_cam: power-domain@10023c00 {
 			compatible = "samsung,exynos4210-pd";
 			reg = <0x10023C00 0x20>;
 			#power-domain-cells = <0>;
 			label = "CAM";
 		};
 
-		pd_gps: gps-power-domain@10023ce0 {
+		pd_gps: power-domain@10023ce0 {
 			compatible = "samsung,exynos4210-pd";
 			reg = <0x10023CE0 0x20>;
 			#power-domain-cells = <0>;
 			label = "GPS";
 		};
 
-		pd_gps_alive: gps-alive-power-domain@10023d00 {
+		pd_gps_alive: power-domain@10023d00 {
 			compatible = "samsung,exynos4210-pd";
 			reg = <0x10023D00 0x20>;
 			#power-domain-cells = <0>;

arch/arm/boot/dts/exynos4210.dtsi

@@ -90,7 +90,7 @@ smp-sysram@1f000 {
 			};
 		};
 
-		pd_lcd1: lcd1-power-domain@10023ca0 {
+		pd_lcd1: power-domain@10023ca0 {
 			compatible = "samsung,exynos4210-pd";
 			reg = <0x10023CA0 0x20>;
 			#power-domain-cells = <0>;

arch/arm/boot/dts/exynos4412.dtsi

@@ -206,7 +206,7 @@ smp-sysram@2f000 {
 			};
 		};
 
-		pd_isp: isp-power-domain@10023ca0 {
+		pd_isp: power-domain@10023ca0 {
 			compatible = "samsung,exynos4210-pd";
 			reg = <0x10023CA0 0x20>;
 			#power-domain-cells = <0>;