Fix Mininet cleanup to skip ovs bridge deletion of vxlan
Fix Mininet cleanup to skip ovs bridge deletion of vxlan

hsnlab/escape,hsnlab/escape,5GExchange/escape,5GExchange/escape,hsnlab/escape,5GExchange/escape,hsnlab/escape,5GExchange/escape,hsnlab/escape,5GExchange/escape,5GExchange/escape,hsnlab/escape