config.sh: Create /etc/X11/xorg.conf.d
    
    Since we dropped the Xorg stack from the images, systemd-localed
    chokes when trying to set configs because it tries to create
    /etc/X11/xorg.conf.d if it doesn't exist so it can write a drop-in
    configuration file for setting xkb configuration, and the SELinux policy
    does not currently permit it.
    
    Until this is addressed somehow, pre-create the directory so localectl
    calls do not fail on this.
    
    Reference: https://bugzilla.redhat.com/2240159