Add patches from upstream for:
      Monitor hotplug support, this fixes issues with monitors on DP-MST
        docs sometimes not lighting up (rhbz#1652279)
      Adding support for using the firmware's bootsplash as theme background
      New bgrt theme which implements the boot-theme design from:
        https://wiki.gnome.org/Design/OS/BootProgress
        Including the new theming for offline-updates shown there
    Make the bgrt theme the new default and upgrade systems which are using the
      charge theme, which is the old default to use the new bgrt theme
    Cleanup the spec-file a bit:
      Remove unused / unnecessary %global variables
      Sort the sections for the various plugins and themes alphabetically
      Simplify theme filelists