Merge pi-dr1-dev to aosp-master

Change-Id: I99221e5baac2c8a048ebd608e89d2d308e3cc279
tree: a0968ea8f3df526f8763095b6348f10addae9563
  1. msm8974/
  2. msm8996/
  3. msm8998/
  4. Android.mk
  5. CleanSpec.mk