Revert "Use FindDevice to get device object path" partially

Revert "Use FindDevice to get device object path" partially

This partially reverts commit 30314c18fea269785f2c25d6f7dcd765008ad7a7

[Problem] Application couldn't make BREDR connection when remote device
 supports BREDR and LE both.
[Cause & Measure] Wrong device object path is used for BREDR connection.
 When a remote device supports BREDR/LE, bluez has two
 device object which has same bdaddr but different bdaddr_type. In this
 case, FindDevice call returns the first searched device's object path.
 To solve this issue, instead of FindDevice call,
 object path should be constructed from address.

Change-Id: If5fb0041906ec7564cc30d88be16479c3078c85e
Signed-off-by: Seungyoun Ju <sy39.ju@samsung.com>
Signed-off-by: DoHyun Pyun <dh79.pyun@samsung.com>