ARM: dts: imx6ull-colibri: Add watchdog

This patch adds the watchdog to the imx6ull-colibri devicetree
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6ull-colibri.dtsi

@@ -199,6 +199,12 @@ &usdhc1 {
 	assigned-clock-rates = <0>, <198000000>;
 };
 
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+};
+
 &iomuxc {
 	pinctrl_can_int: canint-grp {
 		fsl,pins = <
@@ -506,6 +512,12 @@ MX6UL_PAD_CSI_VSYNC__USDHC2_CLK		0x17059
 			MX6UL_PAD_GPIO1_IO03__OSC32K_32K_OUT	0x14
 		>;
 	};
+
+	pinctrl_wdog: wdog-grp {
+		fsl,pins = <
+			MX6UL_PAD_LCD_RESET__WDOG1_WDOG_ANY    0x30b0
+		>;
+	};
 };
 
 &iomuxc_snvs {