Settings: Fix leak of BroadcastReceiver intents

Use Case: Repeated BT ON/OFF

Failure: Broadcast receiver leak is observed with ON/OFF stress
test which leads to broadcast receiver delays.

Steps:
BT ON/OFF.

Root Cause: During every ON/OFF there are broadcast receiver leaks
caused by repeated registering of profile intent receivers.

Fix: Separate broadcast receiver created for profile intents, such
that broadcast receiver for adapter state intents is always
active. Unregister and re-register the profile receiver when BT
is turned OFF.

Test: BT ON/OFF

Bug: 35415158

Change-Id: Id1db747c61bb2dd33515ac45cdc2059844d3e4f5