Update main.yml

Signed-off-by: sakshiarora13 <sakshi_arora1@dell.com>

telemetry/roles/grafana_config/vars/main.yml

@@ -18,4 +18,6 @@ grafana_namespace: grafana
 telemetry_folder_name: telemetry
 dashboards:
   - parallel-coordinate.json
+  - Sankey.json
   - SpiralLayout.json
+  - PowerMap.json