Fixed APN setting for LV LMT MMS

Change-Id: I53bbc6ac33ab957cf2098f27dce379a88c29298f
sepolicy: Start CM Common sepolicy

Rather than having to maintain out of tree changes, it is often
easier to maintain a hiearchy of changes, starting with the vendors
common config file. From there, inheriting products can pick up a base
and start to add or remove certain bits from it, making use of the
BOARD_SEPOLICY_* functions documented in external/sepolicy/README.

Change-Id: I28a4aaf6c126535f0a88001582641b234a750015
Merge remote-tracking branch 'CyanogenMod/cm-10.1' into cm-10.1