SAP: Handle disconnect request during call ongoing state

Handle disconnect request during call ongoing state properly.
Previously if disconnect was received from SAP client while in
call ongoing state, it was not handled properly, leading to
Server not sending the DISCONNECT response thereby violating
Bluetooth SAP Specification.

Change-Id: I666fab4b4513abfa00df4be5b3a7aab95d5f0331
1 file changed