Modify apex_available to Bluetooth apex am: 6d3f60d1b7

Original change: https://android-review.googlesource.com/c/platform/external/libopus/+/3446448

Change-Id: I653adddeff735969d54e51fa7b85440369b7385f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>