dt-bindings: mailbox: mediatek,gce-mailbox: add mt8188 compatible name

Add mt8188 compatible name.

Signed-off-by: Elvis Wang <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno<[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Jassi Brar <[email protected]>

Author: Elvis Wang

Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml

@@ -21,6 +21,7 @@ properties:
       - mediatek,mt8173-gce
       - mediatek,mt8183-gce
       - mediatek,mt8186-gce
+      - mediatek,mt8188-gce
       - mediatek,mt8192-gce
       - mediatek,mt8195-gce