[PATCH] USB: Improve Kconfig comment for mct_u232

Add a couple of supported devices into the help message.

It's a long story... I promised this comment changed to a user long ago,
so I'd like to have that promise kept. In reality though, nobody is
likely to read this anyway.
Signed-off-by: NPete Zaitcev <zaitcev@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/serial/Kconfig

@@ -417,7 +417,7 @@ config USB_SERIAL_MCT_U232
 	  Magic Control Technology Corp. (U232 is one of the model numbers).
 
 	  This driver also works with Sitecom U232-P25 and D-Link DU-H3SP USB
-	  BAY devices.
+	  BAY, Belkin F5U109, and Belkin F5U409 devices.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called mct_u232.