Merge the 2021-06-05 SPL branch from AOSP-Partner

* security-aosp-pi-release:
  [RESTRICT AUTOMERGE] Fix clearkey CryptoPlugin use after free vulnerability.
  [RESTRICT AUTOMERGE] Fix possible uaf of play policy state
  [RESTRICT AUTOMERGE] Fix potential decrypt destPtr overflow.
  Prevent read of uninitialized memory

Change-Id: I5c1a27f0650f6fb0cd3a459eeefc91870c9c5e23