Merge branch 'drm-next-3.16' of git://people.freedesktop.org/~agd5f/linux into drm-next

two fixes for the deep color support in radeon.

* 'drm-next-3.16' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: Bypass hw lut's for > 8 bpc framebuffer scanout.
  drm/radeon: use pixel formats instead of depth/bpp