ASoC: mediatek: mt8188: Add reference for dmic clocks

Add the names for the dmic clocks, aud_afe_dmic* and aud_dmic_hires*, so
they can be acquired and enabled by the platform driver.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20250225-genio700-dmic-v2-2-3076f5b50ef7@collabora.com


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