stairway: some ril fixes to get it out of airplane mode.
stairway: torch through camera interface
a116: more than one LUN
stairway: usb otg
stairway: add prekitkat policy blob define.
stairway: wifi - show macaddr in settings. wifi - store country code.

code heavily inspired by the wpa_supplicant8_ti code.
stairway: soft reboot
stairway: first shot at BT (some thx go to arcee)
stairway: less muxd spam in logcat
stairway: select BT tethering interface
a116: no audio policy blob. guard with device name if other mtk devices are in the tree.
stairway: bump up bt a2dp MTU
Update extract-files.sh
Clean up
a116: nvram permission error fix