ARM: dtsi: imx6qdl-sabresd: Add USB OTG vbus pin to pinctrl_hog

USB OTG vbus pin needs to be configured as gpio function at
sabresd board.
Signed-off-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

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

@@ -171,6 +171,7 @@
 				MX6QDL_PAD_GPIO_0__CCM_CLKO1    0x130b0
 				MX6QDL_PAD_NANDF_CLE__GPIO6_IO07 0x80000000
 				MX6QDL_PAD_ENET_TXD1__GPIO1_IO29 0x80000000
+				MX6QDL_PAD_EIM_D22__GPIO3_IO22  0x80000000
 			>;
 		};
 	};