ARM: dts: imx6ul-14x14-evk.dts: add tsc support

Add touch screen surpport for i.MX6UL-EVK board.
Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6ul-14x14-evk.dts

@@ -91,6 +91,15 @@ &snvs_poweroff {
 	status = "okay";
 };
 
+&tsc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_tsc>;
+	xnur-gpio = <&gpio1 3 GPIO_ACTIVE_LOW>;
+	measure-delay-time = <0xffff>;
+	pre-charge-time = <0xfff>;
+	status = "okay";
+};
+
 &uart1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart1>;
@@ -281,6 +290,15 @@ MX6UL_PAD_CSI_DATA02__GPIO4_IO23		0x3008
 		>;
 	};
 
+	pinctrl_tsc: tscgrp {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO01__GPIO1_IO01		0xb0
+			MX6UL_PAD_GPIO1_IO02__GPIO1_IO02		0xb0
+			MX6UL_PAD_GPIO1_IO03__GPIO1_IO03		0xb0
+			MX6UL_PAD_GPIO1_IO04__GPIO1_IO04		0xb0
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX 0x1b0b1