scsi: initio: make initio_state_7() static

Fix sparse warning:

drivers/scsi/initio.c:1643:5: warning: symbol 'initio_state_7' was not declared. Should it be static?

Link: https://lore.kernel.org/r/20191217134309.41649-1-chenzhou10@huawei.comReported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/initio.c

@@ -1640,7 +1640,7 @@ static int initio_state_6(struct initio_host * host)
  *
  */
 
-int initio_state_7(struct initio_host * host)
+static int initio_state_7(struct initio_host * host)
 {
 	int cnt, i;