Add a pre-test mmi to get the pts address

Some HFP test need to start waiting for a connection BEFORE the test
start and we need the address to wait for it

Bug: 237447510
Bug: 241962982
Bug: 242184809
Test: atest pts-bot
Ignore-AOSP-First: Cherry-picked from AOSP
Merged-In: I3df66abb2c5a99f14459beee93e7784fdc6caf19
Change-Id: I3df66abb2c5a99f14459beee93e7784fdc6caf19