[virtual-mcp11-k8s-contrail] Make virtlet configurable

Add possibility to change virtlet image and enable virtlet addons
in tcp-qa

Change-Id: Ibbb047c3dce3a1578677ba613cbd879b52dbaf1d
Reviewed-on: https://review.gerrithub.io/368404
Reviewed-by: Tatyanka Leontovich <tleontovich@mirantis.com>
Tested-by: Tatyanka Leontovich <tleontovich@mirantis.com>
diff --git a/tcp_tests/settings_oslo.py b/tcp_tests/settings_oslo.py
index ca0aef2..419fd7b 100644
--- a/tcp_tests/settings_oslo.py
+++ b/tcp_tests/settings_oslo.py
@@ -211,6 +211,10 @@
            default='calico/kube-policy-controller:v0.5.4'),
     ct.Cfg('kubernetes_helm_enabled', ct.Boolean(),
            help="", default=True),
+    ct.Cfg('kubernetes_virtlet_enabled', ct.Boolean(),
+           help="", default=False),
+    ct.Cfg('kubernetes_virtlet_image', ct.String(),
+           help="", default='mirantis/virtlet:latest')
 ]
 
 k8s_opts = [