x86: video: Show information about each video device

At present the 'bdinfo' command shows the framebuffer address, but not the
address of the copy framebuffer, if present. Add support for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/include/video.h b/include/video.h
index 1a0ffd8..9d09d24 100644
--- a/include/video.h
+++ b/include/video.h
@@ -13,8 +13,6 @@
 #ifndef _VIDEO_H_
 #define _VIDEO_H_
 
-#ifdef CONFIG_DM_VIDEO
-
 #include <stdio_dev.h>
 
 struct udevice;
@@ -140,6 +138,7 @@
  */
 int video_reserve(ulong *addrp);
 
+#ifdef CONFIG_DM_VIDEO
 /**
  * video_clear() - Clear a device's frame buffer to background color.
  *
@@ -147,6 +146,7 @@
  * @return 0
  */
 int video_clear(struct udevice *dev);
+#endif /* CONFIG_DM_VIDEO */
 
 /**
  * video_sync() - Sync a device's frame buffer with its hardware
@@ -243,8 +243,6 @@
 }
 #endif
 
-#endif /* CONFIG_DM_VIDEO */
-
 #ifndef CONFIG_DM_VIDEO
 
 /* Video functions */