Fix WorkerThreadTest am: 712f48c217

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/17845136

Change-Id: I5c7f40998efb216404b6a651e910dcf605b118de
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>