ARM: dts: exynos: Fix DTC unit name warnings in Exynos542x

Fix following DTC warnings in all Exynos542x/5800 boards:

Warning (unit_address_vs_reg): Node /video-phy@10040728 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /video-phy@10040714 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /usb@12000000 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /usb@12000000/dwc3 has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): Node /usb@12400000 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /usb@12400000/dwc3 has a reg or ranges property, but no unit name
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>

arch/arm/boot/dts/exynos5420.dtsi

@@ -551,13 +551,13 @@ pwm: pwm@12dd0000 {
 		clock-names = "timers";
 	};
 
-	dp_phy: video-phy@10040728 {
+	dp_phy: dp-video-phy {
 		compatible = "samsung,exynos5420-dp-video-phy";
 		samsung,pmu-syscon = <&pmu_system_controller>;
 		#phy-cells = <0>;
 	};
 
-	mipi_phy: video-phy@10040714 {
+	mipi_phy: mipi-video-phy {
 		compatible = "samsung,s5pv210-mipi-video-phy";
 		syscon = <&pmu_system_controller>;
 		#phy-cells = <1>;
@@ -913,7 +913,7 @@ sss: sss@10830000 {
 		clock-names = "secss";
 	};
 
-	usbdrd3_0: usb@12000000 {
+	usbdrd3_0: usb3-0 {
 		compatible = "samsung,exynos5250-dwusb3";
 		clocks = <&clock CLK_USBD300>;
 		clock-names = "usbdrd30";
@@ -921,7 +921,7 @@ usbdrd3_0: usb@12000000 {
 		#size-cells = <1>;
 		ranges;
 
-		usbdrd_dwc3_0: dwc3 {
+		usbdrd_dwc3_0: dwc3@12000000 {
 			compatible = "snps,dwc3";
 			reg = <0x12000000 0x10000>;
 			interrupts = <0 72 0>;
@@ -939,7 +939,7 @@ usbdrd_phy0: phy@12100000 {
 		#phy-cells = <1>;
 	};
 
-	usbdrd3_1: usb@12400000 {
+	usbdrd3_1: usb3-1 {
 		compatible = "samsung,exynos5250-dwusb3";
 		clocks = <&clock CLK_USBD301>;
 		clock-names = "usbdrd30";
@@ -947,7 +947,7 @@ usbdrd3_1: usb@12400000 {
 		#size-cells = <1>;
 		ranges;
 
-		usbdrd_dwc3_1: dwc3 {
+		usbdrd_dwc3_1: dwc3@12400000 {
 			compatible = "snps,dwc3";
 			reg = <0x12400000 0x10000>;
 			interrupts = <0 73 0>;