dt-bindings: watchdog: mediatek,mtk-wdt: Add compatible for MT8173

Add the mediatek,mt8173-wdt compatible using mediatek,mt6589-wdt as
fallback.

Signed-off-by: Allen-KH Cheng <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Acked-by: Rob Herring <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
Reviewed-by: Nícolas F. R. A. Prado <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>

Author: kuanhsuncheng

Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml

@@ -37,6 +37,7 @@ properties:
               - mediatek,mt7622-wdt
               - mediatek,mt7623-wdt
               - mediatek,mt7629-wdt
+              - mediatek,mt8173-wdt
               - mediatek,mt8516-wdt
           - const: mediatek,mt6589-wdt