scsi: aic94xx: Fix kerneldoc formatting issue with 'task'

Kerneldoc expects attributes/parameters to be in '@*.: ' format.

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

 drivers/scsi/aic94xx/aic94xx_tmf.c:685: warning: Function parameter or member 'task' not described in 'asd_query_task'

Link: https://lore.kernel.org/r/20200721164148.2617584-9-lee.jones@linaro.org
Cc: Luben Tuikov <luben_tuikov@adaptec.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/aic94xx/aic94xx_tmf.c

@@ -673,7 +673,7 @@ int asd_lu_reset(struct domain_device *dev, u8 *lun)
 
 /**
  * asd_query_task -- send a QUERY TASK TMF to an I_T_L_Q nexus
- * task: pointer to sas_task struct of interest
+ * @task: pointer to sas_task struct of interest
  *
  * Returns: TMF_RESP_FUNC_COMPLETE if the task is not in the task set,
  * or TMF_RESP_FUNC_SUCC if the task is in the task set.