This option disables copy of certificates from the operator host to
kolla-ansible managed hosts.

This is especially useful if you already have some mechanisms to handle
your certificates directly on your hosts.

Co-Authored-By: Marc 'risson' Schmitt <marc.schmitt@risson.space>
Change-Id: Ie18b2464cb5a65a88c4ac191a921b8074a14f504