Disable systemd-networkd & systemd-resolved
Latest commits in puppet-systemd enabled by default systemd-networkd and
systemd-resolved but we don't want to manage them for now in TripleO.
MySQL and MongoDB services were managing some systemd resources so now
we ensure that these 2 systemd services are disabled. In the future, we
might want and activate these services and revert that patch but for now
we want to disable them.
Change-Id: I42c6c9b643a71a0fbb1768bbae91e8bfa916ea00
Closes-Bug: #
1704145