Merge "VtsHalMediaC2: start thread pool" into main am: 905ee08aee

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2979677

Change-Id: I93c1b4ed7414ddc8f5190453c6cb292a2d75677b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>