audio: add back 5514 switch control for micbias use Bug: 147567469 Revert "audio: rt5514: keep sto mixer control on" This reverts commit ab34a7e9d73c46beed3615236f2dc8298682cc1c. Change-Id: I3888abc4e6416be5adc118632ffb89cff8e44829 Signed-off-by: yixuanjiang <yixuanjiang@google.com>