USB: unusual_devs entry for Argosy USB mass-storage interface

This patch (as1162) adds an unusual_devs entry for Argosy's USB-IDE
interface.  This fixes Bugzilla #11843.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Luciano Rocha <luciano@eurotux.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>