apns: add APN for AIS 3G

AIS 3G 2100 MHz uses a new MNC

Change-Id: If624a7bf465af30ec3160258186054cb9f424108
Update default wallpaper

This updates the default wallpaper to one of those available CMWallpapers

Change-Id: Ie525ef9cf6bd0f4b15df8d6ea77cfadf27e76462
Merge "apns: add APN for AIS 3G" into cm-10.2