Bluetooth: GAP: Handled scan mode during first time BT On

As the discoverability time out concept changed as per the
new design and this code snippet "setting scan mode to
connectable only when endtimestamp is null" is not
applicable.DUT remains in only connectable mode
if user remains in the settings menu.

Change-Id: I7aa2ea7d23c4a47f716e2c0645b2ad73018ada39
CRs-fixed: 714578
Bluetooth: Don't Initiate Connection if UUID not updated

 - if UUIDs are not updated don't initiate profile connection
 - add new profiles to already existing list
 -  don't delete profiles from the existing list

CRs-Fixed: 717840

Change-Id: Id71a5aad59f4004c262f3ad17f34fa0574654170