scsi: dc395x: Fix some function param descriptions

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

 drivers/scsi/dc395x.c:4353: warning: Function parameter or member 'acb' not described in 'adapter_init'
 drivers/scsi/dc395x.c:4353: warning: Function parameter or member 'io_port_len' not described in 'adapter_init'
 drivers/scsi/dc395x.c:4353: warning: Excess function parameter 'host' description in 'adapter_init'

Link: https://lore.kernel.org/r/20210317091230.2912389-10-lee.jones@linaro.org
Cc: Oliver Neukum <oliver@neukum.org>
Cc: Ali Akcaagac <aliakc@web.de>
Cc: Jamie Lenehan <lenehan@twibble.org>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: "C.L. Huang" <ching@tekram.com.tw>
Cc: Erich Chen <erich@tekram.com.tw>
Cc: Kurt Garloff <garloff@suse.de>
Cc: dc395x@twibble.org
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/dc395x.c

@@ -4341,8 +4341,9 @@ static void adapter_init_chip(struct AdapterCtlBlk *acb)
  * tables etc etc. This basically gets all adapter information all up
  * to date, initialised and gets the chip in sync with it.
  *
- * @host:	This hosts adapter structure
+ * @acb:	The adapter which we are to init.
  * @io_port:	The base I/O port
+ * @io_port_len: The I/O port size
  * @irq:	IRQ
  *
  * Returns 0 if the initialization succeeds, any other value on