Description of problem:
Cannot add NIC to template on Network Interfaces page as when Add NIC button is clicked, no NADs are provided even when there is an existing NAD.

Version-Release number of selected component (if applicable):


How reproducible:
100%

Steps to Reproduce:
1.Create a networkAttachmentDefinition:
cat <<EOF | kubectl create -f -
apiVersion: "k8s.cni.cncf.io/v1"
kind: NetworkAttachmentDefinition
metadata:
  name: ovs-net-1
spec:
  config: '{
      "cniVersion": "0.3.1",
      "type": "ovs",
      "bridge": "br0"
    }'
EOF

2. Create a template and go to its 'Network Interfaces' tab. Try to add new NIC
3. Network cannot be configured because the dropdown doesn't provide the existing NAD

Actual results:


Expected results:


Additional info:
I double checked that the added NAD is listed in VM wizard and NIC can be added there.