cerbero: Skip some obviously wrong values for build tools
cerbero: Skip some obviously wrong values for build tools

Part-of: <https://gitlab.freedesktop.org/gstreamer/cerbero/-/merge_requests/480>

GStreamer/cerbero,GStreamer/cerbero,GStreamer/cerbero,GStreamer/cerbero,nirbheek/cerbero,nirbheek/cerbero,GStreamer/cerbero,nirbheek/cerbero,nirbheek/cerbero