YT-202 There is a mirror with tarballs for repos used during the Yocto build

  if some unnecessary changes occur on upstream upstream repo,
  it fetches and recreates the tarball on the mirror, what may affect the build.
  Reconfigure the mirror sync so that if changes on the upstream lead to
  creating a new tarball, the old copy is storred in the archive directory.

  Add archive MIRROR into the configuration.