ARM: dts: Enable support for generic USB DRD phy for exynos5250

Add device tree node for new usbdrd-phy driver, which
is based on generic phy framework.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos5250.dtsi

@@ -569,6 +569,15 @@ usbphy-sys {
 		};
 	};
 
+	usbdrd_phy: phy@12100000 {
+		compatible = "samsung,exynos5250-usbdrd-phy";
+		reg = <0x12100000 0x100>;
+		clocks = <&clock CLK_USB3>, <&clock CLK_FIN_PLL>;
+		clock-names = "phy", "ref";
+		samsung,pmu-syscon = <&pmu_system_controller>;
+		#phy-cells = <1>;
+	};
+
 	usb@12110000 {
 		compatible = "samsung,exynos4210-ehci";
 		reg = <0x12110000 0x100>;