Fix: background gatt connection is not working
[Model] All
[BinType] AP
[Customer] OPEN
[Issue#] N/A
[Request] Internal
[Occurrence Version] N/A
[Problem] background gatt connection is not working
[Cause & Measure] If auto_connect is true, initiate background auto connection
and reply dbus to bt-service
[Checking Method] background gatt auto connection
[Team] Convergence BT
[Developer] Injun Yang
[Solution company] Samsung
[Change Type] Specification change
Change-Id: Ie9f0887774a9e46a26a209d11cbca70298379489