drm: Fix up markup fumble

It's & for struct references, not #.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1462369327-26659-1-git-send-email-daniel.vetter@ffwll.ch

include/drm/drm_modeset_helper_vtables.h

@@ -672,7 +672,7 @@ struct drm_connector_helper_funcs {
 	 * fixed panel can also manually add specific modes using
 	 * drm_mode_probed_add(). Drivers which manually add modes should also
 	 * make sure that the @display_info, @width_mm and @height_mm fields of the
-	 * struct #drm_connector are filled in.
+	 * struct &drm_connector are filled in.
 	 *
 	 * Virtual drivers that just want some standard VESA mode with a given
 	 * resolution can call drm_add_modes_noedid(), and mark the preferred