Binderized GPS - restoring Xtra service

Adding group inet permission
for the GNSS HAL default implementation
for the XTRA-assisted-GPS file
(from internet) download use case

Bug: 35768061
Bug: 35757613
Bug: 34208553
Test: On Marlin - manual GPS tests
      including delete all then restats
      with xtra throttle off

Change-Id: I54090979eff53e83a267ce8f6ad84b2aceae290a