d2att: Set correct default APN

Change-Id: I4e7a810192ace4cab5537391947fae534e65676e
d2att: Add bootloader assertion

 * We need the latest firmware.

Change-Id: Idff5e936bc4cb1cfcd6a60398fae8739aa17ebe9
Merge remote-tracking branch 'CM/cm-10.1' into jellybean