ASoC: dt-bindings: mediatek,mt8365-mt6357: Add audio sound card document

Add soundcard bindings for the MT8365 SoC with the MT6357 audio codec.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Link: https://patch.msgid.link/20240226-audio-i350-v7-2-6518d953a141@baylibre.com


Signed-off-by: Mark Brown <broonie@kernel.org>