Add C-Spire APNs

Change-Id: Ie2e9087009dab438fd14288f6e5ddd6cda17bc44
Correct Claro PR APN

Per https://jira.cyanogenmod.org/browse/CYAN-1750 , correct
mnc listing for Claro PR LTE apn is "110" instead of "11".

Patchset #2: Modify non-LTE APNs as well; change commmit title
Patchset #3: Modify commit title to clarify Claro PR adjustments only

Change-Id: Ic18810492a282fc74b5472139404e2db48edd83d