dt-bindings: watchdog: Add support for Amlogic-T7 SoCs

Update dt-binding document for watchdog of Amlogic-T7 SoCs.
Signed-off-by: Huqiang Qin <huqiang.qin@amlogic.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230802033222.4024946-2-huqiang.qin@amlogic.comSigned-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

Documentation/devicetree/bindings/watchdog/amlogic,meson-gxbb-wdt.yaml

@@ -17,6 +17,7 @@ properties:
   compatible:
     enum:
       - amlogic,meson-gxbb-wdt
+      - amlogic,t7-wdt
 
   reg:
     maxItems: 1