ASoC: amd: acp: move pdm macros to common header file

Move pdm related macros from pdm file to common header file so
that it can be used across different files.

Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@amd.com>
Link: https://lore.kernel.org/r/20230626135515.1252063-10-Syed.SabaKareem@amd.com


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