Quick'n dirty Versi chainspec config. (#5412)

* Quick'n dirty Versi chainspec config.

* Right order

* Fix wrong variable usage

* Fix weird typo.

* Update node/service/src/chain_spec.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>