ASoC: amd: ps: use acp_lock to protect common registers in pdm driver

Retrieve acp_lock mutex as platform data and use it for protecting
ACP common registers access in acp pdm driver.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20230104055435.321327-2-Vijendar.Mukunda@amd.com


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