Rename and use correct recipe.

software/erp5/instance-mariadb.cfg

 [buildout]
 parts =
   publish-mariadb-url
-  mariadb
+  mariadb-instance
   logrotate
   logrotate-entry-mariadb
   cron
@@ -23,8 +23,8 @@ name = mariadb-backup
 frequency = 0 0 * * *
 command = $${mariadb:innobackupex-controller}
 
-[mariadb]
-recipe = slapos.cookbook:mysql
+[mariadb-instance]
+recipe = slapos.cookbook:generic.mysql
 
 # Options
 user = user