Merge "Only allow one pending bluetooth request at a time" into main am: 7fb9055ff3 am: 61137d7d56

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3529935

Change-Id: I73c46160522321fe24b5c5adcb32c1c3705ae6ee
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>