scsi: pcmcia: nsp_cs: Remove unnecessary parentheses

Clang warns:

drivers/scsi/pcmcia/nsp_cs.c:1137:27: warning: equality comparison with
extraneous parentheses [-Wparentheses-equality]
                if ((tmpSC->SCp.Message == MSG_COMMAND_COMPLETE)) {
                     ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/pcmcia/nsp_cs.c:1137:27: note: remove extraneous
parentheses around the comparison to silence this warning
                if ((tmpSC->SCp.Message == MSG_COMMAND_COMPLETE)) {
                    ~                   ^                      ~
drivers/scsi/pcmcia/nsp_cs.c:1137:27: note: use '=' to turn this
equality comparison into an assignment
                if ((tmpSC->SCp.Message == MSG_COMMAND_COMPLETE)) {
                                        ^~
                                        =
1 warning generated.

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>