scsi: aacraid: Add missing description for 'dev'

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

 drivers/scsi/aacraid/nark.c:31: warning: Function parameter or member 'dev' not described in 'aac_nark_ioremap'

Link: https://lore.kernel.org/r/20200721164148.2617584-6-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>