USB: usb-storage: unusual_devs entry for ARM V2M motherboard.

Connecting the V2M to a Linux host results in a constant stream of
errors spammed to the console, all of the form

  sd 1:0:0:0: ioctl_internal_command return code = 8070000
     : Sense Key : 0x4 [current]
     : ASC=0x0 ASCQ=0x0

The errors appear to be otherwise harmless.  Add an unusual_devs entry
which eliminates all of the error messages.
Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/storage/unusual_devs.h

@@ -1988,6 +1988,16 @@ UNUSUAL_DEV(  0x4146, 0xba01, 0x0100, 0x0100,
 		"Micro Mini 1GB",
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NOT_LOCKABLE ),
 
+/*
+ * Nick Bowler <nbowler@elliptictech.com>
+ * SCSI stack spams (otherwise harmless) error messages.
+ */
+UNUSUAL_DEV(  0xc251, 0x4003, 0x0100, 0x0100,
+		"Keil Software, Inc.",
+		"V2M MotherBoard",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_NOT_LOCKABLE),
+
 /* Reported by Andrew Simmons <andrew.simmons@gmail.com> */
 UNUSUAL_DEV(  0xed06, 0x4500, 0x0001, 0x0001,
 		"DataStor",