hisi_sas: Add v1 hardware initialisation code

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 72533ca..ba3bf5e 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -81,6 +81,7 @@
 };
 
 struct hisi_sas_hw {
+	int (*hw_init)(struct hisi_hba *hisi_hba);
 	int complete_hdr_size;
 };