Merge "CCodecBufferChannel: do not clear tracked frames at flush" into udc-dev am: 4129c644 am: 9800d9e9 am: 15133dca

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/23040499



Change-Id: Ie8fd3f125afe6b52a7e5cb8fc427ae5eee6d1cb7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>