[automerger skipped] leaudio: Add graceful disconnect support. am: 035e277b -s ours am: ffeda0bb -s ours

am skip reason: Merged-In Idf5f22c9bc5fe35e2ab42679a3db93115f5987ad with SHA-1 ed515005 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/17944178



Change-Id: If2259bf8861f44d70af3cf75fe76d69de08c5998
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>