ARM: dts: Enabling samsung-usb3phy driver for exynos5250

Adding usb3.0 phy node for Exynos5250 along with the
necessary device data to be parsed.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos5250.dtsi

@@ -479,6 +479,20 @@ i2s2: i2s@12D70000 {
 		pinctrl-0 = <&i2s2_bus>;
 	};
 
+	usbphy@12100000 {
+		compatible = "samsung,exynos5250-usb3phy";
+		reg = <0x12100000 0x100>;
+		clocks = <&clock 1>, <&clock 286>;
+		clock-names = "ext_xtal", "usbdrd30";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		usbphy-sys {
+			reg = <0x10040704 0x8>;
+		};
+	};
+
 	usb@12110000 {
 		compatible = "samsung,exynos4210-ehci";
 		reg = <0x12110000 0x100>;