scsi: aacraid: Demote partially documented function header

scsi: aacraid: Demote partially documented function header

This should be populated by someone who knows the meaning of all the
params.

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

 drivers/scsi/aacraid/dpcsup.c:272: warning: Function parameter or member 'isAif' not described in 'aac_intr_normal'
 drivers/scsi/aacraid/dpcsup.c:272: warning: Function parameter or member 'isFastResponse' not described in 'aac_intr_normal'
 drivers/scsi/aacraid/dpcsup.c:272: warning: Function parameter or member 'aif_fib' not described in 'aac_intr_normal'

Link: https://lore.kernel.org/r/20200713080001.128044-6-lee.jones@linaro.org
Cc: Adaptec OEM Raid Solutions <aacraid@microsemi.com>
Cc: "PMC-Sierra, Inc" <aacraid@pmc-sierra.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>