Refresh fluentd|kibana5x|grafana repo

   * Drop grafana repo as deprecated

Change-Id: I76a8bbc81984474a6be7cfe31d7333cc7cf8651d
Bug-related: PROD-21071 (PROD:21071)
Bug-related: PROD-24490 (PROD:24490)
(cherry picked from commit db9cf3332bef85043ee06705c785c53a9034aba7)
diff --git a/defaults/linux_system_repo.yml b/defaults/linux_system_repo.yml
index f3939db..81497c6 100644
--- a/defaults/linux_system_repo.yml
+++ b/defaults/linux_system_repo.yml
@@ -22,6 +22,7 @@
     linux_system_repo_mcp_maas_url: ${_param:linux_system_repo_url}/maas/
     linux_system_repo_mcp_percona_url: ${_param:linux_system_repo_url}/percona/
     linux_system_repo_mcp_saltstack_url: ${_param:linux_system_repo_url}/saltstack-${_param:linux_system_repo_mcp_saltstack_version_number}/
+    linux_system_repo_mcp_fluentd_url: ${_param:linux_system_repo_url}/td-agent/
     #
     linux_system_repo_mirantis_openstack_url: ${_param:linux_system_repo_url}/openstack-${_param:openstack_version}/
     linux_system_repo_update_mirantis_openstack_url: ${_param:linux_system_repo_update_url}/openstack-${_param:openstack_version}/