Prepare to add a systemd-stage0 package that will replace the existing
bootstrap logic. First we need to let systemd provide systemd-stage0 and
wait until the new binary packages are built.
In follow-up patches (MR 6440), a systemd-stage0 package will be
introduced (that does not depend on systemd-enabled dbus or polkit). The
systemd/dbus and systemd/polkit will be changed to use
systemd-stage0-dev and systemd-stage0-libs as makedepends. This makes
the following bootstrap work when building without a binary repository:
1. systemd-stage0
2. dbus
3. polkit
4. systemd
If we already have the binary repository, dbus and polkit will be built
against systemd proper as it provides systemd-stage0 packages with this
patch.
Part-of: https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/6451
[ci:skip-build]: already built successfully in CI
Oliver Smith
7b8aadabb3