mb/sapphire/pureplatinumh61: Update GMA config

This board was added while the latest libgfxinit changes were in review.
Update to make it compile again and sanitize the port list.

Change-Id: I81b96e225945a8f8e47b64cefea91eb2747675ca
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/19353
Tested-by: build bot (Jenkins)
Reviewed-by: Nicola Corna <nicola@corna.info>

src/mainboard/sapphire/pureplatinumh61/Kconfig

@@ -14,6 +14,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select HAVE_CMOS_DEFAULT
 	select HAVE_ACPI_RESUME
 	select MAINBOARD_HAS_LIBGFXINIT
+	select MAINBOARD_USE_LIBGFXINIT if MAINBOARD_DO_NATIVE_VGA_INIT
 	select INTEL_INT15
 	select UDELAY_TSC
 	select SERIRQ_CONTINUOUS_MODE

src/mainboard/sapphire/pureplatinumh61/gma-mainboard.ads

@@ -1,21 +1,25 @@
 with HW.GFX.GMA;
+with HW.GFX.GMA.Display_Probing;
 
 use HW.GFX.GMA;
+use HW.GFX.GMA.Display_Probing;
 
 private package GMA.Mainboard is
 
    -- For a three-pipe setup, bandwidth is shared between the 2nd and
-   -- the 3rd pipe (if it's not eDP). Thus, probe ports that likely
+   -- the 3rd pipe. Thus, probe ports that likely have a high-resolution
-   -- have a high-resolution display attached first, `Internal` last.
+   -- display attached first.
 
+   -- FIXME: Only one of the digital ports is implemented as DP
+   --        but it's unknown which.
    ports : constant Port_List :=
-     (DP2,
+     (DP1,
+      DP2,
       DP3,
-      Digital1,
+      HDMI1,
-      Digital2,
+      HDMI2,
-      Digital3,
+      HDMI3,
       Analog,
-      Internal,
       others => Disabled);
 
 end GMA.Mainboard;