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: 212d46b3

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

Change-Id: I885bece1943e42e95e6137b079b4c78f41b2e8e2