staging: unisys: visorbus: visorchannel.c: Remove filename in top comment

Removes unnecessary filename in the top file comment.
Signed-off-by: David Binder <david.binder@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visorbus/visorchannel.c

-/* visorchannel_funcs.c
- *
+/*
  * Copyright (C) 2010 - 2015 UNISYS CORPORATION
  * All rights reserved.
  *