ARM: dts: socfpga: enable watchdog timer on Arria5 and Arria10

Enable the watchdog for Arria5 and Arria10.
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>

arch/arm/boot/dts/socfpga_arria10_socdk.dtsi

@@ -154,3 +154,7 @@ &uart1 {
 &usb0 {
 	status = "okay";
 };
+
+&watchdog0 {
+	status = "okay";
+};

arch/arm/boot/dts/socfpga_arria5.dtsi

@@ -42,3 +42,7 @@ sysmgr@ffd08000 {
 		};
 	};
 };
+
+&watchdog0 {
+	status = "okay";
+};