gitlab-ci: add kernel-automotive pipelines

Integrate the automotive pipeline configuration into the GitLab CI config on the os-build branch.

As these pipelines are gated by the target branch name, they will not run on the os-build/ark-latest branches.

This reduces unnecessary divergence between os-build and os-build-automotive-devel. A similar approach is already taken for CS and RHEL, where the GitLab CI config on CS includes the RHEL pipelines as well.

Upstream version of !3088 (merged) and (somehow) part of pipeline-definition#235.

Signed-off-by: Michael Hofmann mhofmann@redhat.com