gma ACPI: Make brightness levels a per board setting

Those are actually board specific. Keep the old value as defaults,
though. The defaults are included by all affected boards.

Change-Id: Ib865c7b4274f2ea3181a89fc52701b740f9bab7d
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/11705
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
diff --git a/src/drivers/intel/gma/acpi/non-pch.asl b/src/drivers/intel/gma/acpi/non-pch.asl
index 0e15627..983dc01 100644
--- a/src/drivers/intel/gma/acpi/non-pch.asl
+++ b/src/drivers/intel/gma/acpi/non-pch.asl
@@ -37,6 +37,6 @@
 		BCLM, 16,
 	}
 
-#include "brightness_levels.asl"
+#include "configure_brightness_levels.asl"
 #include "common.asl"
 }