Add mutex lock for accessing ACP common registers across different
modules.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20230104055435.321327-1-Vijendar.Mukunda@amd.comSigned-off-by: Mark Brown <broonie@kernel.org>