Skylake can be configured with either both 2 and 4 channel DMIC
array, or 2 channel DMIC array only, this patch provides an API to
retrieve the DMIC info from nhlt.
Signed-off-by: NYong Zhi <yong.zhi@intel.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>