Bluetooth: Restart OPP service on ACL disconnect

Whenever OPP service is forcefully stopped, it will get
restarted on reception of ACL disconnected intent from frameworks.

Change-Id: Ic655e5e74126ad1f3eb9bcfc62d6379ed2080bed
CRs-Fixed: 505088
Merge "Bluetooth: Restart OPP service on ACL disconnect"
Merge remote-tracking branch 'caf/jb_2.5' into cm-10.1