scsi: aacraid: Fix a few kerneldoc issues

scsi: aacraid: Fix a few kerneldoc issues

Functions must follow imediately after the header documenting them and all
parameters must be present.

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

 drivers/scsi/aacraid/commctrl.c:43: warning: Excess function parameter 'dev' description in 'AAC_DEBUG_PREAMBLE'
 drivers/scsi/aacraid/commctrl.c:43: warning: Excess function parameter 'arg' description in 'AAC_DEBUG_PREAMBLE'
 drivers/scsi/aacraid/commctrl.c:167: warning: Function parameter or member 'dev' not described in 'open_getadapter_fib'
 drivers/scsi/aacraid/commctrl.c:167: warning: Function parameter or member 'arg' not described in 'open_getadapter_fib'
 drivers/scsi/aacraid/commctrl.c:458: warning: Cannot understand  *
 on line 458 - I thought it was a doc line

Link: https://lore.kernel.org/r/20200713080001.128044-3-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>