board: Show memory for frame buffers

When debugging is enabled, show the memory allocated to video frame
buffers.

Signed-off-by: Simon Glass <sjg@chromium.org>

common/board_f.c

@@ -392,6 +392,8 @@ static int reserve_video(void)
 	ret = video_reserve(&addr);
 	if (ret)
 		return ret;
+	debug("Reserving %luk for video at: %08lx\n",
+	      (unsigned long)gd->relocaddr - addr, addr);
 	gd->relocaddr = addr;
 #elif defined(CONFIG_LCD)
 #  ifdef CONFIG_FB_ADDR