boards: frdm_imx93: enable watchdog on the board

Enable watchdog on the board.

Signed-off-by: Jiafei Pan <[email protected]>

Author: JiafeiPan

boards/nxp/frdm_imx93/frdm_imx93_mimx9352_a55.dts

@@ -18,6 +18,7 @@
 		led0 = &led_r;
 		led1 = &led_g;
 		sw0 = &btn_1;
+		watchdog0 = &wdog4;
 	};
 
 	chosen {
@@ -144,3 +145,7 @@
 	phys = <&can_phy0>;
 	status = "okay";
 };
+
+&wdog4 {
+	status = "okay";
+};

boards/nxp/frdm_imx93/frdm_imx93_mimx9352_a55.yaml

@@ -19,6 +19,7 @@ supported:
   - spi
   - can
   - net
+  - watchdog
 testing:
   ignore_tags:
     - bluetooth