drm/i915: VLV does not have a sprite scaler

Just like HSW, VLV does not have a sprite scale. Set
intel_plane->can_scale accordingly.
Signed-off-by: NDamien Lespiau <damien.lespiau@intel.com>
Reviewed-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_sprite.c

@@ -692,7 +692,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe)
 		break;
 
 	case 7:
-		if (IS_HASWELL(dev))
+		if (IS_HASWELL(dev) || IS_VALLEYVIEW(dev))
 			intel_plane->can_scale = false;
 		else
 			intel_plane->can_scale = true;