Use the same env var for the ovn-controller as set by ovn-operator

This patch renames
"RELATED_IMAGE_OPENSTACK_EDPM_OVN_CONTROLLER_AGENT_DEFAULT_IMG" to the
"RELATED_IMAGE_OVN_CONTROLLER_IMAGE_URL_DEFAULT" which is the same as
used by the ovn-operator to set ovn-controller image used on the
control plane.
OVN requires to use same versions of the ovn-controller and ovn-northd
always so using same envVar will make sure that there will be no
mismatch there.

Jira: #OSPRH-1504

config/default/manager_default_images.yaml

@@ -21,7 +21,7 @@ spec:
           value: quay.io/podified-antelope-centos9/openstack-nova-compute:current-podified
         - name: RELATED_IMAGE_OPENSTACK_EDPM_LIBVIRT_DEFAULT_IMG
           value: quay.io/podified-antelope-centos9/openstack-nova-libvirt:current-podified
-        - name: RELATED_IMAGE_OPENSTACK_EDPM_OVN_CONTROLLER_AGENT_DEFAULT_IMG
+        - name: RELATED_IMAGE_OVN_CONTROLLER_IMAGE_URL_DEFAULT
           value: quay.io/podified-antelope-centos9/openstack-ovn-controller:current-podified
         - name: RELATED_IMAGE_OPENSTACK_EDPM_NEUTRON_METADATA_AGENT_DEFAULT_IMG
           value: quay.io/podified-antelope-centos9/openstack-neutron-metadata-agent-ovn:current-podified

controllers/openstackdataplanenodeset_controller.go

@@ -76,7 +76,7 @@ func SetupAnsibleImageDefaults() {
 		NeutronMetadataAgent: util.GetEnvVar("RELATED_IMAGE_OPENSTACK_EDPM_NEUTRON_METADATA_AGENT_DEFAULT_IMG", NeutronMetadataAgentDefaultImage),
 		NovaCompute:          util.GetEnvVar("RELATED_IMAGE_OPENSTACK_EDPM_NOVA_COMPUTE_DEFAULT_IMG", NovaComputeDefaultImage),
 		NovaLibvirt:          util.GetEnvVar("RELATED_IMAGE_OPENSTACK_EDPM_LIBVIRT_DEFAULT_IMG", NovaLibvirtDefaultImage),
-		OvnControllerAgent:   util.GetEnvVar("RELATED_IMAGE_OPENSTACK_EDPM_OVN_CONTROLLER_AGENT_DEFAULT_IMG", OvnControllerAgentDefaultImage),
+		OvnControllerAgent:   util.GetEnvVar("RELATED_IMAGE_OVN_CONTROLLER_IMAGE_URL_DEFAULT", OvnControllerAgentDefaultImage),
 		OvnBgpAgent:          util.GetEnvVar("RELATED_IMAGE_OPENSTACK_EDPM_OVN_BGP_AGENT_IMAGE", OvnBgpAgentDefaultImage),
 	}
 }