Provide BLE pairing method as best effort way

Provide BLE pairing method as best effort way

[Model] SM-Z300F
[BinType] AP
[Customer] OPEN

[Issue#] N/A
[Request] Operator
[Occurrence Version] BPE5

[Problem] Basis Peak watch disconnects BLE connection if remote device
doesn't make BLE pairing within 5 seconds. But BLE service discovery requires
over 5 seconds so it is always disconnected.
[Cause & Measure] There is no way to make BLE pairing without BLE service
discovery. So it needs to provide BLE pairing way as best effort way.
[Checking Method] Make BLE connection with Basis Peak

[Team] Basic connection
[Developer] Seungyoun Ju
[Solution company] Samsung
[Change Type] Specification change

Change-Id: I8930a9546cfa8d66ade64c8d42a29155232bda43
Signed-off-by: DoHyun Pyun <dh79.pyun@samsung.com>