98dracut-systemd: Start systemd-vconsole-setup before dracut-cmdline-ask

98dracut-systemd: Start systemd-vconsole-setup before dracut-cmdline-ask

This is what happened before this patch (edited for brevity):

  dracut-cmdline-ask.service in modules.d/98dracut-systemd, which invokes
  dracut-cmdline-ask.sh. This script and systemd-vconsole-setup are
  started in parallel for the same console (tty1).

  Then dracut-cmdline-ask quits immediately without doing anything (unless
  rd.cmdline=ask is given). As this is a bash script and it gets tty as
  stdin as specified in its *.service, this triggers the hangup of tty1 at
  its exit.

  Meanwhile systemd-vconsole-setup continues and tries some ioctls after
  that, but they fail because of the hung up tty1.

The usual culprit for starting systemd-vconsole-setup early on is
plymouth-start.service, even if plymouth.enable=0 is set.

A popular (and annoying) symptom of this as reported by users was
the inability use their configured keyboard layout in plymouth when
unlocking their crypted block devices.

Reference: boo#1055834