Merge "AAC Decoder: save decoder config in output format" into rvc-dev am: 6f37518437 am: aac7bf596a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/11816418

Change-Id: I58a050c6f0f4b82fa8c82dc88b451678034295c6