MAP Client connect after PBAP Client

Add code to automatically attempt to connect MAP Client (if enabled)
after PBAP Client connects.  This will typically be invoked at system or
adapter reset, but could as well happen if MAP Client isn't connected
and a new PBAP connection is established.

Bug: 32153228
Change-Id: I9ac5121ccf0d7ef3e5847df32034094e085aa434
(cherry picked from commit 7ee9f149811f2ee10116561a73678b77e4f555f1)