xf86: Disable unused crtc functions when a lease is revoked

This fixes 'non-desktop' displays staying powered on after their lease
has been revoked.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111620
Cc: Keith Packard <keithp@keithp.com>
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
3 jobs for for-stable in 7 minutes and 12 seconds (queued for 28 seconds)
Status Job ID Name Coverage
  Docker Image
passed debian-testing #645394

00:00:40

 
  Build And Test
passed autotools-build-and-test #645395

00:04:39

passed meson-build-and-test #645396

00:01:52