r600g: bump domain selection up one layer.

this is taken from a patch from Mathias Froehlich, just going to
stage it in a few pieces.

Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/src/gallium/winsys/r600/drm/r600_priv.h b/src/gallium/winsys/r600/drm/r600_priv.h
index 4f7e60c..78b8190 100644
--- a/src/gallium/winsys/r600/drm/r600_priv.h
+++ b/src/gallium/winsys/r600/drm/r600_priv.h
@@ -132,7 +132,7 @@
  * radeon_bo.c
  */
 struct radeon_bo *radeon_bo(struct radeon *radeon, unsigned handle,
-			    unsigned size, unsigned alignment);
+			    unsigned size, unsigned alignment, unsigned initial_domain);
 void radeon_bo_reference(struct radeon *radeon, struct radeon_bo **dst,
 			 struct radeon_bo *src);
 int radeon_bo_wait(struct radeon *radeon, struct radeon_bo *bo);