[automerger skipped] [RESTRICT AUTOMERGE] Fix potential decrypt destPtr overflow. am: 3c9044cd am: 4fe89770 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/13461242

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ic49c62723ed8f90e7eb852454138419dd268ad15