This patch allows usb-storage to ignore the reported residue values when
required by some devices.  A few devices are included... I know more are
waiting to be merged into unusual_devs.h

In case anyone is curious... yes, these are broken devices.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>