fix sound

Change-Id: I5fd9646c72f0ba0016b58acca5eef0eade18a5c1
fix cm11 overlay

Change-Id: Ia206e4a89305e3f27a2bb60fd318ffabf3be633c
fix build

Change-Id: Ib629710618adcbc2181a4ac40536c6832a67677e