[PATCH] usb-storage: unusual_devs entry for Motorola RAZR V3x

This patch (as725) adds an unusual_devs entry for the Motorola RAZR V3x.

From: Davide Perini <perini.davide@dpsoftware.org>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>