GATT: Ignore svc changed indication before starting full scan

GATT: Ignore svc changed indication before starting full scan

[Model] All
[BinType] AP
[Customer] OPEN

[Issue#] N/A
[Request] Internal
[Occurrence Version] N/A

[Problem] Service discovery failed
[Cause & Measure] When gatt connected, bluez start full discovery.
 Duplicated svc disvovery is not required
[Checking Method] OOBE connection with iPhone 6 > turn off iPhone BT off & on

[Team] Convergence BT
[Developer] Injun Yang
[Solution company] Samsung
[Change Type] Specification change

Change-Id: I86f326c48c86e4456bd9fa043994f0d32849e2b2