ARM: dts: exynos: use generic node names for phy

Align HDMI and USB phy node names with bindings expectation.

Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Krzysztof Kozlowski <[e-mail]>

arch/arm/boot/dts/exynos3250.dtsi

···
 			status = "disabled";
 		};
 
-		exynos_usbphy: exynos-usbphy@125b0000 {
+		exynos_usbphy: usb-phy@125b0000 {
 			compatible = "samsung,exynos3250-usb2-phy";
 			reg = <0x125B0000 0x100>;
 			samsung,pmureg-phandle = <&pmu_system_controller>;

arch/arm/boot/dts/exynos4.dtsi

···
 			status = "disabled";
 		};
 
-		exynos_usbphy: exynos-usbphy@125b0000 {
+		exynos_usbphy: usb-phy@125b0000 {
 			compatible = "samsung,exynos4210-usb2-phy";
 			reg = <0x125B0000 0x100>;
 			samsung,pmureg-phandle = <&pmu_system_controller>;
···
 			clock-names = "i2c";
 			status = "disabled";
 
-			hdmi_i2c_phy: hdmiphy@38 {
+			hdmi_i2c_phy: hdmi-phy@38 {
 				compatible = "samsung,exynos4210-hdmiphy";
 				reg = <0x38>;
 			};

arch/arm/boot/dts/exynos5250.dtsi

···
 			clock-names = "i2c";
 			status = "disabled";
 
-			hdmiphy: hdmiphy@38 {
+			hdmiphy: hdmi-phy@38 {
 				compatible = "samsung,exynos4212-hdmiphy";
 				reg = <0x38>;
 			};

arch/arm/boot/dts/exynos5420.dtsi

···
 			#sound-dai-cells = <0>;
 		};
 
-		hdmiphy: hdmiphy@145d0000 {
+		hdmiphy: hdmi-phy@145d0000 {
 			reg = <0x145D0000 0x20>;
 		};