Camera HAL3/API1: Add support for the partial result quirk.

- Camera2Client:
 - Detect partial result quirk
- Camera3Device:
 - Accumulate all partial results together
 - Fire off 3A-only result once all 3A states are available
- FrameProcessorBase:
 - Filter out partials, don't send to listeners
- FrameProcessor:
 - Skip face detect on partials
 - Make sure to only handle a 3A update for a given frame once
 - Trigger AF notifications when AF mode or trigger changes, to
   properly detect all AF transitions.

Bug: 11115603
Change-Id: Iea8aa73c568701562a46071f7ea100624251d10b