ARM: dts: add hsotg device node for exynos4

This patch adds a hsotg node for exynos4 USB2.0 device controller.

Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Kamil Debski <k.debski@samsung.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos4.dtsi

@@ -304,6 +304,17 @@ exynos_usbphy: exynos-usbphy@125B0000 {
 		status = "disabled";
 	};
 
+	hsotg@12480000 {
+		compatible = "samsung,s3c6400-hsotg";
+		reg = <0x12480000 0x20000>;
+		interrupts = <0 71 0>;
+		clocks = <&clock CLK_USB_DEVICE>;
+		clock-names = "otg";
+		phys = <&exynos_usbphy 0>;
+		phy-names = "usb2-phy";
+		status = "disabled";
+	};
+
 	ehci@12580000 {
 		compatible = "samsung,exynos4210-ehci";
 		reg = <0x12580000 0x100>;