Add network policy value overrides

This change adds network policy overrides for multiple infra
services for the openstack-helm network policy gate.

Change-Id: If051ec1749cb9ed1e289f0cf82a8876371e36531

ingress/values_overrides/netpol.yaml

@@ -0,0 +1,2 @@
+manifests:
+  network_policy: true

libvirt/values_overrides/netpol.yaml

@@ -0,0 +1,2 @@
+manifests:
+  network_policy: true

mariadb/values_overrides/netpol.yaml

@@ -0,0 +1,2 @@
+manifests:
+  network_policy: true

memcached/values_overrides/netpol.yaml

@@ -0,0 +1,2 @@
+manifests:
+  network_policy: true

openvswitch/values.yaml

@@ -160,6 +160,8 @@ network_policy:
   openvswitch:
     ingress:
       - {}
+    egress:
+      - {}
 
 dependencies:
   dynamic:

openvswitch/values_overrides/netpol.yaml

@@ -0,0 +1,2 @@
+manifests:
+  network_policy: true

rabbitmq/values_overrides/netpol.yaml

@@ -0,0 +1,2 @@
+manifests:
+  network_policy: true