Add/fix APNs...

...Enitel, Movistar, Poste Mobile, Trilogy Dominicana, Sipgate, Safaricom, Etisalat AE

PS2: rebase

Change-Id: I9126b3f579fa61dc8f413d562dd71ce840027957
(cherry picked from commit ada0a6c18b8e5af25222ec4715e7336287c17465)