[automerger skipped] [RESTRICT AUTOMERGE] Fix potential decrypt srcPtr  overflow. am: a7dd68bd -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/13411281

Change-Id: Ia8936aa484c5924e93b9de040558becd0533ed95