[automerger skipped] Allow for server-side configuration of libstagefright am: 1b32bccc1a -s ours

am skip reason: Merged-In I95aa6772a40599636d109d6960c2898e44648c9b with SHA-1 ffeb680417 is already in history

Original change: https://android-review.googlesource.com/c/platform/system/sepolicy/+/2762467

Change-Id: I719b9b0dd51bac4ac0fc513402918ca1c73dbe10
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>