[PATCH] USB ATM: driver for the Conexant AccessRunner chipset cxacru

Driver for modems based on the Conexant AccessRunner chipset.
Original patch by Josep Comas, much reworked by Roman Kagan.
Signed-off-by: NDuncan Sands <baldrick@free.fr>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>