[automerger skipped] leaudio: Improve cleanup on Bluetooth stack off am:...

[automerger skipped] leaudio: Improve cleanup on Bluetooth stack off am: 760f3c14 am: 1e286f13 -s ours

am skip reason: Merged-In Ia5ad66b0949ed693499efc88de7ffc783508a4c3 with SHA-1 ab4a7d4b is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/17944177



Change-Id: I2d6a1fdc681211e258a92acf329a625c4894a30f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>