recovery: default recovery updating to false

Default recovery flashing on system updates to false. This can be
overridden for specific builds/devices, but the option can be enabled
or disabled on all builds.

Change-Id: Ia1bc94bd1e5f799fc894286a6b2f4f7a8a3816dd
Add/fix APNs...

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

PS2: rebase

Change-Id: I9126b3f579fa61dc8f413d562dd71ce840027957