ASoC: mediatek: mt8186: Remove clock share parsing from DT

ASoC: mediatek: mt8186: Remove clock share parsing from DT

Now that the clock sharing for i2s ports can be configured from the
sound machine driver, remove the logic that was used to parse the
properties from the devicetree.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220908161154.648557-11-nfraprado@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>