Add OVN support

Install docs:
https://docs.openstack.org/networking-ovn/latest/install/index.html

Partial Prod: PROD-15003

Co-Authored-By: Elena Ezhova <eezhova@mirantis.com>
Change-Id: I0a7023f3e14aae6d5ec5efe8f117ebc9d0ed302d
diff --git a/tests/pillar/control_ovn.sls b/tests/pillar/control_ovn.sls
new file mode 100644
index 0000000..cd79174
--- /dev/null
+++ b/tests/pillar/control_ovn.sls
@@ -0,0 +1,57 @@
+neutron:
+  server:
+    enabled: true
+    version: ocata
+    backend:
+      engine: ovn
+      external_mtu: 1500
+      mechanism:
+        ovn:
+          driver: ovn
+      tenant_network_types: "geneve,flat"
+    controller_vip: 172.16.10.101
+    dvr: false
+    l3_ha: false
+    dns_domain: novalocal
+    global_physnet_mtu: 1500
+    bind:
+      address: 172.16.10.101
+      port: 9696
+    compute:
+      host: 127.0.0.1
+      password: workshop
+      region: RegionOne
+      tenant: service
+      user: nova
+    database:
+      engine: mysql
+      host: 127.0.0.1
+      name: neutron
+      password: workshop
+      port: 3306
+      user: neutron
+    identity:
+      engine: keystone
+      host: 127.0.0.1
+      password: workshop
+      port: 35357
+      region: RegionOne
+      tenant: service
+      user: neutron
+      endpoint_type: internal
+    message_queue:
+      engine: rabbitmq
+      host: 127.0.0.1
+      password: workshop
+      port: 5672
+      user: openstack
+      virtual_host: /openstack
+
+linux:
+  system:
+    enabled: true
+    repo:
+      mirantis_openstack_ocata:
+        source: "deb http://mirror.fuel-infra.org/mcp-repos/ocata/xenial ocata main"
+        architectures: amd64
+        key_url: "http://mirror.fuel-infra.org/mcp-repos/ocata/xenial/archive-mcpocata.key"