Optionally mount "ovn-rbac-pki-ca" in the edpm_ovn service POD

This new secret is created by the ovn-operator with patch [1] and
contains OVN SB DB certificate which next is used to sign certificates
used by the ovn-controller on each of the edpm nodes.
This is required to use OVN RBAC for the connection between
ovn-controllers and ovn southband DB.

[1] openstack-k8s-operators/ovn-operator#541

Related: #OSPRH-1921

Signed-off-by: Slawek Kaplonski <skaplons@redhat.com>

Author: slawqo

config/services/dataplane_v1beta1_openstackdataplaneservice_ovn.yaml

@@ -7,6 +7,9 @@ spec:
   dataSources:
     - configMapRef:
         name: ovncontroller-config
+    - secretRef:
+        name: ovn-rbac-pki-ca
+        optional: true
   tlsCerts:
     default:
       contents: