Merge "codec2 vndk: clean up block pool cache when it's released" into...

Merge "codec2 vndk: clean up block pool cache when it's released" into sc-qpr1-dev am: 549c8132 am: 22222841 am: f8f0cbb0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/15788847

Change-Id: I680c059b1c4d6a1d21f7b64a05cfca4640b1cd35