Merge branch 'drm/next/du' of git://linuxtv.org/pinchartl/fbdev into drm-next

misc rcar changes.

* 'drm/next/du' of git://linuxtv.org/pinchartl/fbdev:
  drm: rcar-du: Fix compilation warning
  drm: rcar-du: Use ARCH_RENESAS
  drm: rcar-du: Clarify vsp dependency