ASoC: dt-binding: Convert MediaTek mt8183-mt6358 to DT schema

ASoC: dt-binding: Convert MediaTek mt8183-mt6358 to DT schema

Convert the existing text-based DT binding for MT8183 sound cards using
MT6358 and various other codecs to a DT schema.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Julien Massot <julien.massot@collabora.com>
Link: https://patch.msgid.link/20250826-mtk-dtb-warnings-v3-6-20e89886a20e@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>