Add the Multi-Tech cellular modem firmware to the TI USB serial driver.
This firmware was extracted from:

ftp://ftp.multitech.com/wireless/wireless_linux.zip

Firmware licence: "all firmware components are redistributable in binary
	form" per support@multitech.com
	Copyright (C) 2005 Multi-Tech Systems, Inc.
Signed-off-by: NChris Adams <cmadams@hiwaay.net>
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>