QCamera3: Add vendor keys for postview

By default, postview will not be produced by HDR+. If the application
enables postview, the application will get postview in partial
result.

Increase the partial result count to 3.

Test: CTS
Bug: 32455964
Change-Id: I0f71175f01b1114266184f09870097e286da4d29
4 files changed
tree: 69883fb94fde7f8279cdd0064487293234bfbd92
  1. msm8998/
  2. Android.mk
  3. CleanSpec.mk