gma pipe setup: Add missing `pragma Debug`

We should keep the core functionality free of `HW.Debug`.

Change-Id: Id5fd31b137f5a9da99dc18bcb21535ddfbaf264a
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/26884
Tested-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/common/hw-gfx-gma-pipe_setup.adb b/common/hw-gfx-gma-pipe_setup.adb
index d62475e..50b63e5 100644
--- a/common/hw-gfx-gma-pipe_setup.adb
+++ b/common/hw-gfx-gma-pipe_setup.adb
@@ -567,7 +567,8 @@
            (Register => Registers.GMCH_PFIT_CONTROL,
             Value    => PF_CTRL_ENABLE or PF_Ctrl_Pipe_Sel or PF_Ctrl_Scaling);
       else
-         Debug.Put_Line ("GMCH Pannel fitter already in use, skipping...");
+         pragma Debug (Debug.Put_Line
+           ("GMCH Pannel fitter already in use, skipping..."));
       end if;
    end Setup_Gmch_Panel_Fitter;