FP5-2084 ANR occur when changing Preferred NW type

* Root Cause
  ANR occur when invoke getNetworkSelectionMode
* Solution
  read network selection mode from database, not read from modem
* Test Steps
  run test with live network
  
Change-Id: Icaf66ffe0080086d2ece6b7c8b590a45913cf447
1 file changed