mmc: dt-bindings: add support for MT8183 SoC

Add the devicetree binding for MT8183 SoC
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Documentation/devicetree/bindings/mmc/mtk-sd.txt

@@ -10,6 +10,7 @@ Required properties:
 - compatible: value should be either of the following.
 	"mediatek,mt8135-mmc": for mmc host ip compatible with mt8135
 	"mediatek,mt8173-mmc": for mmc host ip compatible with mt8173
+	"mediatek,mt8183-mmc": for mmc host ip compatible with mt8183
 	"mediatek,mt2701-mmc": for mmc host ip compatible with mt2701
 	"mediatek,mt2712-mmc": for mmc host ip compatible with mt2712
 	"mediatek,mt7622-mmc": for MT7622 SoC