USB: storage: include Prolific Technology USB drive in unusual_devs list

Add a quirk entry for the Leading Driver UD-11 usb flash drive.

As Alan Stern told me, the device doesn't deal correctly with the
locking media feature of the device, and this patch incorporates it.

Compiled, tested, working.

Signed-off-by: Rogerio Brito <[e-mail]>
Cc: Phil Dibowitz <[e-mail]>
Cc: Alan Stern <[e-mail]>
Cc: Robert Hancock <[e-mail]>
Cc: stable <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/storage/unusual_devs.h

···
 		US_SC_DEVICE, US_PR_DEVICE, NULL,
 		US_FL_FIX_CAPACITY ),
 
+/* Reported by Rogerio Brito <[e-mail]> */
+UNUSUAL_DEV( 0x067b, 0x2317, 0x0001, 0x001,
+		"Prolific Technology, Inc.",
+		"Mass Storage Device",
+		US_SC_DEVICE, US_PR_DEVICE, NULL,
+		US_FL_NOT_LOCKABLE ),
+
 /* Reported by Richard -=[]=- <[e-mail]> */
 /* Change to bcdDeviceMin (0x0100 to 0x0001) reported by
  * Thomas Bartosik <[e-mail]> */