mariadb: Put check_implicit_admin back

Signed-off-by: Kevin Fenzi <kevin@scrye.com>

roles/mariadb_server/tasks/main.yml

@@ -28,6 +28,7 @@
     name: root
     password: "{{ mariadb_root_password }}"
     login_unix_socket: /var/lib/mysql/mysql.sock
+    check_implicit_admin: true
 
 - name: create .my.cnf file for future logins
   template: src=dotmy.cnf.j2 dest=/root/.my.cnf owner=root group=root mode=0700