Add Eastlink Wireless APN

Add national and international roaming APNs per
https://jira.cyanogenmod.org/browse/CYAN-1994

Change-Id: Ife2f6ac1b3b712b62ebe71f51d18edd5be462b80
Merge branch 'cm-10.2' of git://github.com/CyanogenMod/android_vendor_cm into cm-10.2