Add 'region' field to the index templates

Change-Id: I70bcf8f708d005384bec2988caf4c96f81a609ea
diff --git a/elasticsearch/files/es_template_audit.json b/elasticsearch/files/es_template_audit.json
index 359a25f..0932346 100644
--- a/elasticsearch/files/es_template_audit.json
+++ b/elasticsearch/files/es_template_audit.json
@@ -33,6 +33,10 @@
                     "index": "not_analyzed",
                     "type": "string"
                 },
+                "region": {
+                    "index": "not_analyzed",
+                    "type": "string"
+                },
                 "action": {
                     "index": "not_analyzed",
                     "type": "string"
diff --git a/elasticsearch/files/es_template_log.json b/elasticsearch/files/es_template_log.json
index 7ea2124..9ca0fcf 100644
--- a/elasticsearch/files/es_template_log.json
+++ b/elasticsearch/files/es_template_log.json
@@ -38,7 +38,7 @@
                     "index": "not_analyzed",
                     "type": "string"
                 },
-                "openstack_region": {
+                "region": {
                     "index": "not_analyzed",
                     "type": "string"
                 },
diff --git a/elasticsearch/files/es_template_notification.json b/elasticsearch/files/es_template_notification.json
index be645d5..1a74f3e 100644
--- a/elasticsearch/files/es_template_notification.json
+++ b/elasticsearch/files/es_template_notification.json
@@ -41,6 +41,10 @@
                     "index": "not_analyzed",
                     "type": "string"
                 },
+                "region": {
+                    "index": "not_analyzed",
+                    "type": "string"
+                },
                 "request_id": {
                     "index": "not_analyzed",
                     "type": "string"