dt-bindings: i2c: i2c-mt65xx: Add MediaTek Dimensity 1200 MT6893

Add support for the MediaTek Dimensity 1200 (MT6893) SoC; this
chip's multiple I2C controller instances are fully compatible
with the ones found in the MT8192 SoC.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250416120303.148017-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>

Author: AngeloGioacchino Del Regno

Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml

@@ -52,6 +52,7 @@ properties:
           - const: mediatek,mt8173-i2c
       - items:
           - enum:
+              - mediatek,mt6893-i2c
               - mediatek,mt8195-i2c
           - const: mediatek,mt8192-i2c