Add a default MMS UA

The default user-agent isn't set, which makes
TelephonyManager.getMmsUserAgent() return an empty string when a
device doesn't have one in its own overlays. Every hardware should
set its own unique name for this, but add a default value for cases
in which is is forgotten.

Fixes android.telephony.cts.TelephonyManagerTest#testTelephonyManager

Change-Id: I8a648014873319ea0d0f1089495d6777b8a1b8bf
Add a default MMS UA Profile URL

Companion change to I8a648014873319ea0d0f1089495d6777b8a1b8bf,
config_mms_user_agent_profile_url can't be empty either

Change-Id: Ib6b34972439818da47c389377664e75263dfd21b
multi-carrier overlays: Add eri and config for US Cellular

Change-Id: I112716f94eb9fe7509845689688fcea13da361f7
Add Telenor Unified

New APN per https://jira.cyanogenmod.org/browse/CYAN-3338

Referenced: http://anderse.wordpress.com/2012/07/28/telenor-mobil-norway-apn-settings/

Change-Id: I119e0691128802cbfb3821ad9b17e6f49e20765e
cm: New ultimate revolutionary feature of revolution!

Change-Id: Ia3d0a099b8cb0c5170f3aaba0fb68d1f216b6be7
Merge "cm: New ultimate revolutionary feature of revolution!" into cm-11.0
Merge "multi-carrier overlays: Add eri and config for US Cellular" into cm-11.0
Merge remote-tracking branch 'upstream/cm-11.0' into cm-11.0