Add Lycamobile PT MVNO apn

Per https://jira.cyanogenmod.org/browse/CYAN-797

Patchset #2: Correct MNC
Patchset #3: Remove User/Pass

Change-Id: Ic93f6672d12ef72a9998f5fdb65c04686869b7cc
Merge "Add Lycamobile PT MVNO apn" into cm-10.1