scsi: mpt3sas: Simplify bool comparison

Fix the following coccicheck warning:

./drivers/scsi/mpt3sas/mpt3sas_base.c:2424:5-20: WARNING: Comparison of 0/1
to bool variable

Link: https://lore.kernel.org/r/1610355253-25960-1-git-send-email-abaci-bugfix@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: YANG LI <abaci-bugfix@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>