Merge "media: protect around set_callback_stall aconfig flag access" into main am: de189371ec

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3191670

Change-Id: I164cac78a8629798f7eb6da099cd524d372a9289
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>