jenkins: update openstack-mkcloud job configuration

Sync job configuration with the current version used in river.suse.de

Changes made:

* Remove `WITHTEMPEST` parameter
* Add `tempestoptions` parameter
* Add `networkingmode` parameter
* `cephvolumenumber` changed from `2` to `1`
* Timeout changed from 90 minutes to 4 hours (perl alarm)
* Added `nodenumber`, `networkingplugin` and `tempestoptions` parameters to
  the name of the build