ARM: dts: rockchip: add USB nodes for evb-rv1108

This patch adds USB OTG/EHCI/OHCI nodes for evb-rv1108 USB ports.

Signed-off-by: William Wu <william.wu@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/arch/arm/dts/rv1108-evb.dts b/arch/arm/dts/rv1108-evb.dts
index 0128dd8..2b221b6 100644
--- a/arch/arm/dts/rv1108-evb.dts
+++ b/arch/arm/dts/rv1108-evb.dts
@@ -20,6 +20,15 @@
 	chosen {
 		stdout-path = "serial2:1500000n8";
 	};
+
+	vcc5v0_otg: vcc5v0-otg-drv {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		regulator-name = "vcc5v0_otg";
+		gpio = <&gpio0 RK_PB0 GPIO_ACTIVE_HIGH>;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
 };
 
 &gmac {
@@ -52,3 +61,16 @@
 &uart2 {
 	status = "okay";
 };
+
+&usb20_otg {
+	vbus-supply = <&vcc5v0_otg>;
+	status = "okay";
+};
+
+&usb_host_ehci {
+	status = "okay";
+};
+
+&usb_host_ohci {
+	status = "okay";
+};