Bump OpenContrail docker image version

Related-PROD: PROD-30073
Change-Id: Ib82266055a5e748bd70201cc5eed76d8ef711088
diff --git a/defaults/docker_images.yml b/defaults/docker_images.yml
index 1c43a70..7d99ec1 100644
--- a/defaults/docker_images.yml
+++ b/defaults/docker_images.yml
@@ -23,7 +23,7 @@
     docker_image_operations_api: "${_param:mcp_docker_registry}/mirantis/model-generator/operations-api:${_param:mcp_version}"
     docker_image_operations_ui: "${_param:mcp_docker_registry}/mirantis/model-generator/operations-ui:${_param:mcp_version}"
     # OpenContrail
-    opencontrail_docker_image_tag: "2019.2.3"
+    opencontrail_docker_image_tag: "2019.2.4"
     # stacklight
     # 6.5.0 version, from 11/29/2018, differ from latest upstream 6.5.0 - update next cycle
     docker_image_alerta: "${_param:mcp_docker_registry}/mirantis/external/alerta-web:${_param:mcp_version}"