Bluetooth: Fix to avoid framework reboot during monkey.

A case where monkey is running & sometimes framework is
disconnected due to unhandled java Exception during the
binding of PAN service on unsuccessful binding. So it never
handled. Handing java exception while binding PAN service
to solve this issue.

Change-Id: Idea710593a3f9496305f636042605303e73e7749
CRs-Fixed: 564709