staging: unisys: visorbus: Fix parameter alignment.

Fixed the following checkpatch warning:
visorchannel.c:443: CHECK: Alignment should match open parenthesis

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>