fixes BBHN->ticket:1
Units will show:
Yellow banner for devices we have not yet tested.
Red banner for devices we have confirmed do not work.
Relies on what Ubiquiti calls the board.sysid which is the
value of subsystem_device on the first PCI device.
Includes removing files that are provided by packages instead
of being embedded as binaries.
Changes made for UBNT hardware AND for newer base openwrt (Backfire)