- Clarify hardware.camera feature being only for the back camera
- Clarify what setting a CaptureRequest field to null does
- Use preCorrectionActiveArray instead of activeArray in list of
possible raw output sizes
- Clarify length of GPS processing field for camera1 API
Bug: 24540625
Bug: 23908116
Bug: 23051627
Bug: 17345901
Change-Id: Iaf11fdf626268cf30f66b3628153ec3ac770c4f4