Merge "Return control flow upon duplicate connection detected" am: 294466d7 am: eecfe1b9

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2385315



Change-Id: Ib8a9c4bdf4d921c7cb37bb2dc9d242f09f9a41d3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>