Add logic to check DMIC hardware exists or not on
the platform at runtime.

Add module param for overriding DMIC hardware check
at runtime.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/1593710826-1106-1-git-send-email-Vijendar.Mukunda@amd.comSigned-off-by: Mark Brown <broonie@kernel.org>