Change roaming protocol for "telenor.smart" to IPv4

* As per info on telenor.no

Change-Id: I7d5febd07e362d38880b454a45a3b692f52a954c

Conflicts:
	prebuilt/common/etc/apns-conf.xml
apn: fix some data issues when using sprint operator numerics.

this fixes issues like
https://jira.cyanogenmod.org/browse/NIGHTLIES-404

requires:
http://review.cyanogenmod.org/#/c/79764/

Change-Id: I595788c3bf529640df16aaa75551bb55b4c0f036