ARM: at91/dts: evk-pro3: enable watchdog

Tested on evk-pro3.
Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/boot/dts/evk-pro3.dts

@@ -34,6 +34,10 @@ usb1: gadget@fffa4000 {
 				atmel,vbus-gpio = <&pioC 5 0>;
 				status = "okay";
 			};
+
+			watchdog@fffffd40 {
+				status = "okay";
+			};
 		};
 
 		usb0: ohci@00500000 {