dt-bindings: iio: adc: Add compatible for Mediatek MT8195

This commit adds dt-binding documentation of auxadc for Mediatek MT8195 SoC
Platform.
Signed-off-by: Seiya Wang <seiya.wang@mediatek.com>
Link: https://lore.kernel.org/r/20210319023427.16711-7-seiya.wang@mediatek.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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

@@ -34,6 +34,7 @@ properties:
       - items:
           - enum:
               - mediatek,mt8183-auxadc
+              - mediatek,mt8195-auxadc
               - mediatek,mt8516-auxadc
           - const: mediatek,mt8173-auxadc