scsi: mpt2sas: fix ioctl in comment

Fix 'ioctl' spelling.

Signed-off-by: Alex Pilon <alp+linux@alexpilon.ca>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/scsi/mpt2sas/mpt2sas_ctl.h

@@ -224,7 +224,7 @@ struct mpt2_ioctl_eventreport {
 };
 
 /**
- * struct mpt2_ioctl_command - generic mpt firmware passthru ioclt
+ * struct mpt2_ioctl_command - generic mpt firmware passthru ioctl
  * @hdr - generic header
  * @timeout - command timeout in seconds. (if zero then use driver default
  *  value).