camera_metadata: Clear up gain/exposure defs and add sensor.temperature def

- sensor.temperature is optional

Change-Id: I6c837ecb4f1701274ed720d13d71bd7f3f112229
4 files changed
tree: 67a1f91e93a03094ae8605bd2298e4f511458ef8
  1. audio_effects/
  2. audio_route/
  3. audio_utils/
  4. camera/
  5. CleanSpec.mk