Decrease workers number for neutron

To avoid performance issues in aio we need to decrease
workers number for neutron.

Change-Id: Ie2540965f9a008db0f7c84dd15f8981244318dd0
Related-Prod: https://mirantis.jira.com/browse/PROD-16465
diff --git a/classes/cluster/virtual-mcp11-aio/openstack/init.yml b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
index 6ac2af2..4ff8032 100755
--- a/classes/cluster/virtual-mcp11-aio/openstack/init.yml
+++ b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
@@ -140,9 +140,14 @@
           global_default: True
   neutron:
     server:
+      api_workers: 2
+      rpc_state_report_workers: 2
+      rpc_workers: 2
       message_queue:
         members: ~
     gateway:
+      metadata:
+        workers: 2
       agent_mode: dvr_snat
       dvr: True
   nova: