Camera2/3: Fix deadlock when starting recording before preview.

Move 3A notification synthesis for HAL3 devices from
Camera3Device::processCaptureResult to Camera2Client's
FrameProcessor. This will ensure that calls to processCaptureResult
from HAL can never block on Camera2Client internal mutexes.

Bug: 9923891
Change-Id: I5184649bf45c0807babe6b8c0e1239e959cd3480
Merge tag 'android-4.3_r3.1' of https://android.googlesource.com/platform/frameworks/av into cm-10.2

Android 4.3 Release 3.1
Merge remote-tracking branch 'cm/cm-10.2'; commit 'HEAD' into HEAD