dt-bindings: iio: adc: Support MediaTek MT8189 evb board auxadc

add compatible string for mt8189 evb board dts node of auxadc

Signed-off-by: Jack Hsu <[email protected]>
Acked-by: Conor Dooley <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

Author: Jack Hsu

Documentation/devicetree/bindings/iio/adc/mediatek,mt2701-auxadc.yaml

@@ -42,6 +42,7 @@ properties:
               - mediatek,mt8183-auxadc
               - mediatek,mt8186-auxadc
               - mediatek,mt8188-auxadc
+              - mediatek,mt8189-auxadc
               - mediatek,mt8195-auxadc
               - mediatek,mt8516-auxadc
           - const: mediatek,mt8173-auxadc