ASoC: mediatek: mt8188: add platform driver

Add mt8188 platform driver.

Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20230116034131.23943-9-trevor.wu@mediatek.com


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