bt: Add late bonding confirmation mechanism am: 63d37a3d am: 9a922ed4

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/23276700



Change-Id: Ia22b40d8c06a31042a0247f99528c19d9a8af646
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>