Fix : PSCAN is not disabled after ACL connected

Fix : PSCAN is not disabled after ACL connected

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

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

[Problem] pscan is not turned off after connected with remote device
[Cause & Measure] Kernel didn't control PSCAN since bt-service have request connectable mode to stack.
 So do not request connectable mode to handle pscan into kernel side.
[Checking Method] connect GM and check pscan status

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

Change-Id: Ia4252768f79661c3e6ec6243c0ebdd6a21b58fcc