Migrate Telenor Norway APN to IPV6

Change-Id: Icd31b63c83bf3a5a08837a3fe2681c0c80e15fc8
APN: Giffgaff -> giffgaff

giffgaff is all lowercase

Change-Id: I9e999b6e0007e881f37054f4bd5f257463fdb7e8
Merge remote-tracking branch 'cyan/cm-11.0' into kitkat