msm8974: camera bringup

* enable zsl overlay
* kang camera wrapper from m7

Change-Id: I66f54a007c468260f97974f01a9534d3e7f5221f
audio: add moar audio configs.

Change-Id: I6cb4dc35cde97e28f2f562bef069658aa61b609c
Merge remote-tracking branch 'cm/cm-11.0' into kitkat