vl/compositor: replace pipe_video_rect with u_rect

So we support things like flipping also.

Signed-off-by: Christian König <deathsimple@vodafone.de>
diff --git a/src/gallium/state_trackers/xvmc/xvmc_private.h b/src/gallium/state_trackers/xvmc/xvmc_private.h
index 26f874a..014d83f 100644
--- a/src/gallium/state_trackers/xvmc/xvmc_private.h
+++ b/src/gallium/state_trackers/xvmc/xvmc_private.h
@@ -90,8 +90,8 @@
    /* optional palette for this subpicture */
    struct pipe_sampler_view *palette;
 
-   struct pipe_video_rect src_rect;
-   struct pipe_video_rect dst_rect;
+   struct u_rect src_rect;
+   struct u_rect dst_rect;
 
    /* The surface this subpicture is currently associated with, if any. */
    XvMCSurface *surface;