ARM: dts: rockchip: enable usb controller on marsboard

This enables the previously disabled usb controllers on the marsboard
and makes it possible to for example mount usb mass storage devices.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rk3066a-marsboard.dts

@@ -206,6 +206,14 @@
 	status = "okay";
 };
 
+&usb_host {
+	status = "okay";
+};
+
+&usb_otg {
+	status = "okay";
+};
+
 &wdt {
 	status = "okay";
 };