ARM: dts: vf610-twr: Add USB support

Add USB support for Freescale Vybrid tower. The USB hosts over-current
protection signal is not connected to the PHY's over- current
protection, hence we need to disable it.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>

arch/arm/boot/dts/vf610-twr.dts

@@ -275,3 +275,13 @@ &uart2 {
 	pinctrl-0 = <&pinctrl_uart2>;
 	status = "okay";
 };
+
+&usbdev0 {
+	disable-over-current;
+	status = "okay";
+};
+
+&usbh1 {
+	disable-over-current;
+	status = "okay";
+};