staging: unisys: visorchannel.c remove unneeded parenthesis
staging: unisys: visorchannel.c remove unneeded parenthesis

Fix the checkpatch.pl -strict check:

CHECK: Unnecessary parentheses around sig_hdr.num_overflows
+                                  &(sig_hdr.num_overflows),

Signed-off-by: David Kershner <af0edbfd86cb4475cb78945d4335593dfc15eead@unisys.com>
Signed-off-by: Benjamin Romer <aa4f04c7a9e9354d8d7625bad3543e518d310003@unisys.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs