gma skl: Add DDI buffer translations

Change-Id: Ibb058de78f671b94ee788f30342184a8c31a1154
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/20167
Tested-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/common/skylake/hw-gfx-gma-connectors-ddi-buffers.ads b/common/skylake/hw-gfx-gma-connectors-ddi-buffers.ads
index 499226a..cc4b9ed 100644
--- a/common/skylake/hw-gfx-gma-connectors-ddi-buffers.ads
+++ b/common/skylake/hw-gfx-gma-connectors-ddi-buffers.ads
@@ -15,7 +15,6 @@
 private package HW.GFX.GMA.Connectors.DDI.Buffers
 is
 
-   procedure Translations (Trans : out Buf_Trans_Array; Port : Digital_Port)
-      is null;
+   procedure Translations (Trans : out Buf_Trans_Array; Port : Digital_Port);
 
 end HW.GFX.GMA.Connectors.DDI.Buffers;