cleanup config mk files

* NewAudio already inherits PackageElements & Stars
* gsm & cdma mks are no longer used. MAKE SURE YOUR DEVICE DOESN'T
INHERIT THEM!
* bring it down to just phone, tablet & common.

Change-Id: I8c30d39e3339b2a26786baa03d838ad28eeb9ecf
Add/fix APNs...

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

PS2: rebase

Change-Id: I9126b3f579fa61dc8f413d562dd71ce840027957