scsi: sgiwd93: Remove unneeded semicolon in sgiwd93.c

Fix the following coccicheck warning:

drivers/scsi/sgiwd93.c:190:2-3: Unneeded semicolon

Link: https://lore.kernel.org/r/20200421034029.28030-1-yanaijie@huawei.com


Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>