scsi: isci: request: Fix doc-rot issue relating to 'ireq' param

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/isci/request.c:496: warning: Function parameter or member 'ireq' not described in 'scu_sata_request_construct_task_context'
 drivers/scsi/isci/request.c:496: warning: Excess function parameter 'sci_req' description in 'scu_sata_request_construct_task_context'

Link: https://lore.kernel.org/r/20210317091230.2912389-28-lee.jones@linaro.org
Cc: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/isci/request.c

@@ -481,7 +481,7 @@ static void scu_ssp_task_request_construct_task_context(struct isci_request *ire
  * scu_sata_request_construct_task_context()
  * This method is will fill in the SCU Task Context for any type of SATA
  *    request.  This is called from the various SATA constructors.
- * @sci_req: The general IO request object which is to be used in
+ * @ireq: The general IO request object which is to be used in
  *    constructing the SCU task context.
  * @task_context: The buffer pointer for the SCU task context which is being
  *    constructed.