Somehow a few formatting issues crept in that rst complained about in

commit 7b414ba9e7aa75fc4dff6597036ff758031b9bdf (HEAD -> maintainer-tools)
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Jul 20 21:28:12 2017 +0200

    drm-intel.rst: Fix formatting

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>