Using byt_alc283 audio mixin

New byt_alc283 audio mixin is used
on baytrail_generic target.

Change-Id: Ic8ca777170792e3bb5c3a762e206abd6fba47eb7
Signed-off-by: Viorel Suman <viorel.suman@intel.com>
Reviewed-on: https://android.intel.com/176459
Reviewed-by: Chiras, Robert <robert.chiras@intel.com>
Tested-by: Vlaescu, CristianX <cristianx.vlaescu@intel.com>
Reviewed-by: Serban, Mihai <mihai.serban@intel.com>