dt-bindings: watchdog: add support for Amlogic A4 SoCs

Update dt-binding document for watchdog of Amlogic A4 SoCs.

Signed-off-by: Huqiang Qin <[email protected]>
Signed-off-by: Xianwei Zhao <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Rob Herring (Arm) <[email protected]>

Author: Huqiang Qin

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

@@ -21,6 +21,7 @@ properties:
           - amlogic,t7-wdt
       - items:
           - enum:
+              - amlogic,a4-wdt
               - amlogic,c3-wdt
               - amlogic,s4-wdt
           - const: amlogic,t7-wdt