meta-leda-backports vs meta-lts-mixins

[mikehaller]

We introduced meta-leda-backports to port GoLang 1.19+ back to kirkstone, which is required by meta-kanto due to security vulnerabilities upgrades.

In the meantime, we found meta-lts-mixins to provide backports for kirkstone as well.
It may be good to migrate to the official meta-lts-mixins instead of maintaining our own meta-leda-backports.

[d-s-e]

fixed with #210