staging: unisys: fix parenthesis in toolaction_show()

Fix the only fixable parenthesis alignment issue in
visorchipset.c. The rest are unworkable because of the length
of the symbol names used.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>