[PATCH 1/3] drm/doc: integrate crtc helper api into docbook

- Add the missing doc for drm_helper_move_panel_connectors_to_head. - Fixup any outdated stuff in existing sections. I've only looked at those kerneldoc headers that actually resulted in a complaint from the kerneldoc parser tool. v2: - Actually include the docbook snippet in the right patch.

[PATCH 1/3] drm/doc: integrate crtc helper api into docbook

- Add the missing doc for drm_helper_move_panel_connectors_to_head. - Fixup any outdated stuff in existing sections. I've only looked at those kerneldoc headers that actually resulted in a complaint from the kerneldoc parser tool. v2: - Actually include the docbook snippet in the right patch.