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

Merge "Camera: Quit extension handler thread during release" am: 8aacfdb2 am: 0521e677 am: 4df311c1

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



Change-Id: Icc5528e75b00e0ef7f16d010c91be6a45306b86e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>