added missing package and variables

defaults/main.yml

 librenms_user: librenms
 librenms_group: "{{librenms_user}}"
 librenms_home: /opt/librenms
-librenms_db_host: 127.0.0.1:3306
+librenms_db_host: 127.0.0.1
+librenms_db_port: 3306
 librenms_db_name: librenms
 librenms_db_user: librenms
 librenms_db_pass: xai6oa8va7mai7ChaeTu
 librenms_tls: yes
 librenms_http_port: 443
 librenms_version: master
+librenms_admin_user: admin
+librenms_admin_pass: admin
 
 librenms_deb_packages:
+  - acl
   - curl
   - composer
   - fping