arm: zynq: Enable cadence driver on zc706

Enable watchdog with reset-on-timeout feature.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

arch/arm/dts/zynq-zc706.dts

@@ -333,3 +333,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usb0_default>;
 };
+
+&watchdog0 {
+	reset-on-timeout;
+};

configs/zynq_zc706_defconfig

@@ -73,3 +73,5 @@ CONFIG_USB_GADGET_PRODUCT_NUM=0x0300
 CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_USB_FUNCTION_THOR=y
+CONFIG_WDT=y
+CONFIG_WDT_CDNS=y