x86: apl: Support writing the IntelGraphicsMem table

This table is needed by the Linux graphics driver to handle graphics
correctly. Write it to ACPI.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/bloblist.h b/include/bloblist.h
index bbe0a35..7d84805 100644
--- a/include/bloblist.h
+++ b/include/bloblist.h
@@ -32,6 +32,7 @@
 	 * Sleeping table. This forms part of the ACPI tables passed to Linux.
 	 */
 	BLOBLISTT_ACPI_GNVS,
+	BLOBLISTT_INTEL_VBT,		/* Intel Video-BIOS table */
 };
 
 /**