msm8974: Enable WMA DSP codecs

Change-Id: Ic6dafcb823c1095e2f114f311c50faaf50352e16
hammerhead: Set mm-parser mask

Change-Id: Iab75c6d1e566c9e511e36c2da05c82882e3775cd
hammerhead: Update AudioFX apk, add postprocessing lib

AudioFX from bacon 38R.

Change-Id: I663d4a5c9152718a90f63e51996c10a06907aa9b
hammerhead: Increase headphone gain

Change-Id: Ifa6d0c0ab6fb66ed6f3151b38dcff23bb5160f09