made izat Opt In icon indicate the Opt In status

Switch the layout entry order and moved up Location
Services; Made Izat Accelerate Location entry's icon
indicate the user consent status; replaced the full
screen view with a dialog box to prompt user with
Opt In message.

Change-Id: Ie4c58ebf1048b03c0d1443532eca2f2f030cfb21
CRs-Fixed: 929695