ARM: dts: Add USB host node for Exynos4

This patch adds EHCI and OHCI host device nodes for Exynos4.
Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos4.dtsi

@@ -243,6 +243,24 @@ sdhci@12540000 {
 		status = "disabled";
 	};
 
+	ehci@12580000 {
+		compatible = "samsung,exynos4210-ehci";
+		reg = <0x12580000 0x100>;
+		interrupts = <0 70 0>;
+		clocks = <&clock 304>;
+		clock-names = "usbhost";
+		status = "disabled";
+	};
+
+	ohci@12590000 {
+		compatible = "samsung,exynos4210-ohci";
+		reg = <0x12590000 0x100>;
+		interrupts = <0 70 0>;
+		clocks = <&clock 304>;
+		clock-names = "usbhost";
+		status = "disabled";
+	};
+
 	mfc: codec@13400000 {
 		compatible = "samsung,mfc-v5";
 		reg = <0x13400000 0x10000>;