Change sdn authentication from basic(username,password) to token
authentication, deprecate MlnxSDNUsername and MlnxSDNPassword
and add a new parameter "MlnxSDNToken" to authenticate sdn controller
Depends-on: https://review.opendev.org/c/openstack/puppet-neutron/+/814554
Change-Id: Icf39bbd3621423f350275d5183071987719622e1