These are supposedly not required for AMD platforms,
but at least some HP laptops seem to require it to
properly turn off the keyboard backlight.

Based on a patch from Marcin Bachry <hegel666@gmail.com>.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1230Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>