ASoC: Intel: Skylake: Add enum control for mic selection

User may prefer to select data from particular mics. A mic-select module
in DSP allows this selection.

Create possible enum controls to allow user to select a combination of
mics to capture data from. Based on the user selection, parameters are
generated and passed to mic-select module during init.

Signed-off-by: Dharageswari R <dharageswari.r@intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/intel/skylake/skl-tplg-interface.h b/sound/soc/intel/skylake/skl-tplg-interface.h
index c22517b..f8d1749 100644
--- a/sound/soc/intel/skylake/skl-tplg-interface.h
+++ b/sound/soc/intel/skylake/skl-tplg-interface.h
@@ -24,6 +24,7 @@
  * SST types start at higher to avoid any overlapping in future
  */
 #define SKL_CONTROL_TYPE_BYTE_TLV	0x100
+#define SKL_CONTROL_TYPE_MIC_SELECT	0x102
 
 #define HDA_SST_CFG_MAX	900 /* size of copier cfg*/
 #define MAX_IN_QUEUE 8