Merge "Camera: Quit extension handler thread during release" into udc-dev am:...

Merge "Camera: Quit extension handler thread during release" into udc-dev am: f34e90c0 am: f82c0efe am: 1f354e01 am: c4295a39

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23064806



Change-Id: Ibef556fabd3d0550444e46eb20b562f13a550255
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>