scsi: hisi_sas: add missing break in switch statement

It appears that a break in the TRANS_TX_OPEN_CNX_ERR_NO_DESTINATION case
got accidentally removed in an earlier commit, as it stands, the
ts->stat and ts->open_rej_reason are being updated twice for this case
which looks incorrect.  Fix this by adding in the missing break
statement.

Detected by CoverityScan, CID#1422110 ("Missing break in switch")

Fixes: 634a9585 ("scsi: hisi_sas: process error codes according to their priority")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/hisi_sas/hisi_sas_v2_hw.c

@@ -1709,6 +1709,7 @@ static void slot_err_v2_hw(struct hisi_hba *hisi_hba,
 		{
 			ts->stat = SAS_OPEN_REJECT;
 			ts->open_rej_reason = SAS_OREJ_NO_DEST;
+			break;
 		}
 		case TRANS_TX_OPEN_CNX_ERR_PROTOCOL_NOT_SUPPORTED:
 		{