ARM: dts: imx6qdl-sabrelite: Add over-current pin to usbotg

KEY_COL4 is over-current for usbotg on Sabre Lite.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx6qdl-sabrelite.dtsi

@@ -231,6 +231,7 @@
 		pinctrl_usbotg: usbotggrp {
 			fsl,pins = <
 				MX6QDL_PAD_GPIO_1__USB_OTG_ID		0x17059
+				MX6QDL_PAD_KEY_COL4__USB_OTG_OC	0x1b0b0
 				/* power enable, high active */
 				MX6QDL_PAD_EIM_D22__GPIO3_IO22  0x000b0
 			>;