arm64: dts: stratix10: enable watchdog timer on the S10 devkit

Enables the watchdog0 timer on the Stratix10 devkit.
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>

arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts

@@ -101,3 +101,7 @@ &uart0 {
 &usb0 {
 	status = "okay";
 };
+
+&watchdog0 {
+	status = "okay";
+};