drm/nouveau: use drm_crtc_handle_vblank()

Remove legacy usage of drm_handle_vblank()

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1467677092-5089-4-git-send-email-gustavo@padovan.org

drivers/gpu/drm/nouveau/nouveau_display.c

@@ -47,7 +47,7 @@ nouveau_display_vblank_handler(struct nvif_notify *notify)
 {
 	struct nouveau_crtc *nv_crtc =
 		container_of(notify, typeof(*nv_crtc), vblank);
-	drm_handle_vblank(nv_crtc->base.dev, nv_crtc->index);
+	drm_crtc_handle_vblank(&nv_crtc->base);
 	return NVIF_NOTIFY_KEEP;
 }