Merge "ultrahdr: signal all threads that no further jobs will be queued" into...

Merge "ultrahdr: signal all threads that no further jobs will be queued" into udc-dev am: 15ed5da8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/23114816



Change-Id: Id81cbf349f509d23f6b81a8a4321af1e70e5aa62
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>