Updating MariaDB yum repo to use SSL.
Updating MariaDB yum repo to use SSL.

Change-Id: I97f709799d63389ec2e80c33a9585eff118db0ab
Closes-Bug: #1634756

os-cloud/openstack-ansible-galera_server,openstack/openstack-ansible-galera_server,os-cloud/openstack-ansible-galera_server,openstack/openstack-ansible-galera_server