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-mainline-prod am: def24f31

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/15697623

Change-Id: Ib1f334dd700c18f7759076bb4328bb74034e5832