Use MariaDB instead of MySQL for openSUSE
Use MariaDB instead of MySQL for openSUSE

MariaDB is the default of openSUSE, let's use that one.

Change-Id: I1d90f6718590ff7c030e524e61dfd111c0597e41

openstack/openstack-manuals,potsmaster/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,Akasurde/openstack-manuals,openstack/openstack-manuals,kairoaraujo/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,saeki-masaki/openstack-manuals,saeki-masaki/openstack-manuals,Akasurde/openstack-manuals,gongysh2004/openstack-manual,gongysh2004/openstack-manual,kairoaraujo/openstack-manuals,potsmaster/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals