Sort hosts by alphabetical order in Grafana

Change-Id: I15625e74d1ae042467e684c852cd73d679d8c278
diff --git a/elasticsearch/files/grafana_dashboards/elasticsearch_prometheus.json b/elasticsearch/files/grafana_dashboards/elasticsearch_prometheus.json
index 51221c2..bfb92dd 100644
--- a/elasticsearch/files/grafana_dashboards/elasticsearch_prometheus.json
+++ b/elasticsearch/files/grafana_dashboards/elasticsearch_prometheus.json
@@ -1867,7 +1867,7 @@
         "refresh": 1,
         "refresh_on_load": true,
         "regex": ".*,host=\"(.+?\\d+)\".*",
-        "sort": 0,
+        "sort": 1,
         "tagValuesQuery": "",
         "tags": [],
         "tagsQuery": "",