ARM: dts: imx6q-sabrelite: add serial2 pinctrl support

Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx6q-sabrelite.dts

@@ -73,6 +73,8 @@ audmux@021d8000 {
 
 			uart2: serial@021e8000 {
 				status = "okay";
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_serial2_1>;
 			};
 
 			i2c@021a0000 { /* I2C1 */

arch/arm/boot/dts/imx6q.dtsi

@@ -502,6 +502,13 @@ pinctrl_i2c1_1: i2c1grp-1 {
 					};
 				};
 
+				serial2 {
+					pinctrl_serial2_1: serial2grp-1 {
+						fsl,pins = <183 0x1b0b1		/* MX6Q_PAD_EIM_D26__UART2_TXD */
+							    191 0x1b0b1>;	/* MX6Q_PAD_EIM_D27__UART2_RXD */
+					};
+				};
+
 				usdhc3 {
 					pinctrl_usdhc3_1: usdhc3grp-1 {
 						fsl,pins = <1273 0x17059	/* MX6Q_PAD_SD3_CMD__USDHC3_CMD */