Add KPI2 grafana dashboard

(cherry picked from commit e35abeca948d1f341852c37eafd8e623a04a4f51)

Change-Id: I345b5f825d6e65eb770816eb9306558eebad9863
Related-PROD: PROD-27907
diff --git a/metadata/service/client/dashboards/all.yml b/metadata/service/client/dashboards/all.yml
index 1705cab..28b2271 100644
--- a/metadata/service/client/dashboards/all.yml
+++ b/metadata/service/client/dashboards/all.yml
@@ -36,6 +36,7 @@
 - service.grafana.client.dashboards.stacklight.grafana
 - service.grafana.client.dashboards.stacklight.influxdb
 - service.grafana.client.dashboards.stacklight.kibana
+- service.grafana.client.dashboards.stacklight.kpi_downtime
 - service.grafana.client.dashboards.stacklight.prometheus
 - service.grafana.client.dashboards.stacklight.prometheus_relay
 - service.grafana.client.dashboards.stacklight.provisioning_kpi