[automerger skipped] [DO NOT MERGE] Fix heap buffer overflow in sbrDecoder_AssignQmfChannels2SbrChannels(). am: 50aa5be388 am: 0468e02e5b am: d20df7ee14 -s ours am: 80ebc985fb -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/aac/+/12088847

Change-Id: I9a57636513443249a25c6789ed2eb975cf91b45c