staging: unisys: iochannel fix block comments

This patch fixes warning messages from checkpatch.pl specifically:
WARNING: Block comments use a trailing */ on a separate lines

Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>