APN type fix for Telenor Serbia

APN type was set to "default,supl,mms" for both internet and mms. Using CyanogenMod (CM11) it is causing of sending and receiving mms to get stuck forever.

This sets APN type for internet to "default,supl" and "mms" for mms.

Change-Id: Ia2cede31788ab4f76b52d8a2f2ef8a934427169e
Added APN for Tal Iceland, ref CYAN-5026.
Note that I am not on that network myself so I have not been able to verify the settings. However, they are taken from the official support site.

Change-Id: I8b803f5af6e6c307f4ce85f1e20bf75050bcf1be
apns-conf.xml: update verizon apns

* these are taken from the latest jfltevzw ota update
* appears bearer is no longer needed
* general cleanup of duplicates

Change-Id: Ida43d7e1419d58a50d16c02d51d2bc4ed3495aa6