ARM: davinci: da850: add wdt DT node

Add da850 wdt DT node.
Add OF_DEV_AUXDATA for wdt driver to use wdt clock.

Signed-off-by: Kumar, Anil <anilkumar.v@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
index 0060903..f712fb6 100644
--- a/arch/arm/boot/dts/da850-evm.dts
+++ b/arch/arm/boot/dts/da850-evm.dts
@@ -36,6 +36,9 @@
 			pinctrl-names = "default";
 			pinctrl-0 = <&i2c0_pins>;
 		};
+		wdt: wdt@1c21000 {
+			status = "okay";
+		};
 	};
 	nand_cs3@62000000 {
 		status = "okay";
diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index 9669e80..3ec1bda 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -102,6 +102,11 @@
 			#size-cells = <0>;
 			status = "disabled";
 		};
+		wdt: wdt@1c21000 {
+			compatible = "ti,davinci-wdt";
+			reg = <0x21000 0x1000>;
+			status = "disabled";
+		};
 	};
 	nand_cs3@62000000 {
 		compatible = "ti,davinci-nand";