Merge "Camera: Quit extension handler thread during release" am: 8aacfdb2 am: 0521e677

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2555515



Change-Id: I70b32e935f11c5595dcfd9772813935d5d0727a3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>