gma: Add `eDP' flag to Port_Config

Again, we assume that a port with panel controls attached is eDP.

Change-Id: Idd40b4258c08ba88ec7b0ab631e683aba848f9c1
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.sourcearcade.org/c/libgfxinit/+/466
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: Nico Huber <nico.h@gmx.de>
diff --git a/common/hw-gfx-gma-config_helpers.adb b/common/hw-gfx-gma-config_helpers.adb
index 014d1b2..b43f9e2 100644
--- a/common/hw-gfx-gma-config_helpers.adb
+++ b/common/hw-gfx-gma-config_helpers.adb
@@ -224,6 +224,8 @@
             Panel    => To_Panel (Port),
             Mode     => Mode,
             Is_FDI   => Config.Is_FDI_Port (Port),
+            Is_eDP   => To_Display_Type (Port) = DP and
+                        To_Panel (Port) /= No_Panel,
             FDI      => Default_DP,
             DP       => Default_DP);
 
@@ -260,6 +262,7 @@
             Panel    => No_Panel,
             Mode     => Invalid_Mode,
             Is_FDI   => False,
+            Is_eDP   => False,
             FDI      => Default_DP,
             DP       => Default_DP);
       end if;