Merge changes from topic 'pbcamera'

* changes:
  QCamera3: Enable Easel HDR+ by default
  QCamera3: Disable HDR+ for front camera
  QCamera3: Close HDR+ client in video mode
tree: 03048e659747ba4c085a59ae89e74475b89502fd
  1. msm8998/
  2. Android.mk
  3. CleanSpec.mk