Add support for icc operator numeric

With Uicc card, when device is camped for eHRPD network,
mcc-mnc values populated on APN editor are wrong.
This is because the icc property used to read mcc-mnc is
updated with mcc-mnc value from RuimRecords.

Fix is to get family type from PS RAT and read mcc-mnc value
from icc records obtained from RAT family type

Change-Id: I55dd21a473827b8a7dc5e6ccba21ceb626403b0b
CRs-Fixed: 727780