Merge "Floss: Report device disconnect only when both transports disconnected"...

Merge "Floss: Report device disconnect only when both transports disconnected" into main am: b7b3d2c3 am: 7c0ce593

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/3103097



Change-Id: I12f20008ce7576f769db020e32cee8f444e64333
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>