Add nova_az dashboard to meta

Change-Id: Ie472edd69db7f16e7ec220618d8df2d22b4133ad
Related-PROD: PROD-34800
diff --git a/nova/meta/grafana.yml b/nova/meta/grafana.yml
index ced2406..4561b11 100644
--- a/nova/meta/grafana.yml
+++ b/nova/meta/grafana.yml
@@ -42,6 +42,10 @@
     datasource: prometheus
     format: json
     template: nova/files/grafana_dashboards/nova_top_tenants_prometheus.json
+  nova_az_prometheus:
+    datasource: prometheus
+    format: json
+    template: nova/files/grafana_dashboards/nova_az_prometheus.json
   nova_influxdb:
     datasource: influxdb
     format: json