Companion for #6912 (#1784)

* adjustments for substrate PR

https://github.com/paritytech/substrate/pull/6912

* Update runtime/kusama/src/lib.rs

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

* Apply suggestions from code review

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

* update substrate

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>
9 jobs for master in 22 minutes and 28 seconds (queued for 2 seconds)