gma hsw+: Add boilerplate for DDI buffer translations

Change-Id: I8fcba64a3c663b9eea7fb11088c62ea584d63e04
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/20129
Tested-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/common/broxton/Makefile.inc b/common/broxton/Makefile.inc
index 90241b2..0197c6a 100644
--- a/common/broxton/Makefile.inc
+++ b/common/broxton/Makefile.inc
@@ -1,3 +1,4 @@
+gfxinit-y += hw-gfx-gma-connectors-ddi-buffers.ads
 gfxinit-y += hw-gfx-gma-ddi_phy.adb
 gfxinit-y += hw-gfx-gma-ddi_phy.ads
 gfxinit-y += hw-gfx-gma-plls.adb
diff --git a/common/broxton/hw-gfx-gma-connectors-ddi-buffers.ads b/common/broxton/hw-gfx-gma-connectors-ddi-buffers.ads
new file mode 100644
index 0000000..499226a
--- /dev/null
+++ b/common/broxton/hw-gfx-gma-connectors-ddi-buffers.ads
@@ -0,0 +1,21 @@
+--
+-- Copyright (C) 2017 secunet Security Networks AG
+--
+-- This program is free software; you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation; either version 2 of the License, or
+-- (at your option) any later version.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+
+private package HW.GFX.GMA.Connectors.DDI.Buffers
+is
+
+   procedure Translations (Trans : out Buf_Trans_Array; Port : Digital_Port)
+      is null;
+
+end HW.GFX.GMA.Connectors.DDI.Buffers;