scsi: aacraid: Add descriptions for missing parameters

Also clean-up some white space issues while we're here.

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

 drivers/scsi/aacraid/sa.c:147: warning: Function parameter or member 'p2' not described in 'sa_sync_cmd'
 drivers/scsi/aacraid/sa.c:147: warning: Function parameter or member 'p3' not described in 'sa_sync_cmd'
 drivers/scsi/aacraid/sa.c:147: warning: Function parameter or member 'p4' not described in 'sa_sync_cmd'
 drivers/scsi/aacraid/sa.c:147: warning: Function parameter or member 'p5' not described in 'sa_sync_cmd'
 drivers/scsi/aacraid/sa.c:147: warning: Function parameter or member 'p6' not described in 'sa_sync_cmd'
 drivers/scsi/aacraid/sa.c:147: warning: Function parameter or member 'r1' not described in 'sa_sync_cmd'
 drivers/scsi/aacraid/sa.c:147: warning: Function parameter or member 'r2' not described in 'sa_sync_cmd'
 drivers/scsi/aacraid/sa.c:147: warning: Function parameter or member 'r3' not described in 'sa_sync_cmd'
 drivers/scsi/aacraid/sa.c:147: warning: Function parameter or member 'r4' not described in 'sa_sync_cmd'
 drivers/scsi/aacraid/sa.c:290: warning: Function parameter or member 'dev' not described in 'aac_sa_ioremap'

Link: https://lore.kernel.org/r/20200721164148.2617584-4-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>

drivers/scsi/aacraid/sa.c

@@ -135,12 +135,20 @@ static void aac_sa_notify_adapter(struct aac_dev *dev, u32 event)
  *	@dev: Adapter
  *	@command: Command to execute
  *	@p1: first parameter
+ *	@p2: second parameter
+ *	@p3: third parameter
+ *	@p4: forth parameter
+ *	@p5: fifth parameter
+ *	@p6: sixth parameter
  *	@ret: adapter status
+ *	@r1: first return value
+ *	@r2: second return value
+ *	@r3: third return value
+ *	@r4: forth return value
  *
  *	This routine will send a synchronous command to the adapter and wait
  *	for its	completion.
  */
-
 static int sa_sync_cmd(struct aac_dev *dev, u32 command,
 		u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
 		u32 *ret, u32 *r1, u32 *r2, u32 *r3, u32 *r4)
@@ -283,6 +291,7 @@ static int aac_sa_check_health(struct aac_dev *dev)
 
 /**
  *	aac_sa_ioremap
+ *	@dev: device to ioremap
  *	@size: mapping resize request
  *
  */