ARM: vf610-zii-cfu1: Add node for switch watchdog

Add I2C child node for switch watchdog present on CFU1.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Cory Tusar <cory.tusar@zii.aero>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/vf610-zii-cfu1.dts

@@ -236,6 +236,18 @@ eeprom@54 {
 	};
 };
 
+&i2c1 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+
+	watchdog@38 {
+		compatible = "zii,rave-wdt";
+		reg = <0x38>;
+	};
+};
+
 &snvsrtc {
 	status = "disabled";
 };
@@ -304,6 +316,13 @@ VF610_PAD_PTB15__I2C0_SDA		0x37ff
 		>;
 	};
 
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			VF610_PAD_PTB16__I2C1_SCL		0x37ff
+			VF610_PAD_PTB17__I2C1_SDA		0x37ff
+		>;
+	};
+
 	pinctrl_leds_debug: pinctrl-leds-debug {
 		fsl,pins = <
 			VF610_PAD_PTD3__GPIO_82			0x31c2