Backport fixes for NM running via systemd+dbus in the initramfs
    
    Also backport a fix to drop requirement on deprecated systemd-udev-settle.
    
    - https://github.com/dracutdevs/dracut/pull/1547
    - https://github.com/dracutdevs/dracut/pull/1548
    - https://github.com/dracutdevs/dracut/pull/1552