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>

src/drivers/intel/gma/acpi/configure_brightness_levels.asl

@@ -1,25 +1,3 @@
-	Name (BRIG, Package (0x12)
-	{
-		100, /* default AC */
-		100, /* default Battery */
-		  2,
-		  4,
-		  5,
-		  7,
-		  9,
-		 11,
-		 13,
-		 18,
-		 20,
-		 24,
-		 29,
-		 33,
-		 40,
-		 50,
-		 67,
-		100,
-	})
-
 	Method (XBCM, 1, NotSerialized)
 	{
 		Store (Divide (Multiply (Arg0, BCLM), 100), BCLV)

src/drivers/intel/gma/acpi/default_brightness_levels.asl

@@ -0,0 +1,24 @@
+Scope (GFX0)
+{
+	Name (BRIG, Package (0x12)
+	{
+		100, /* default AC */
+		100, /* default Battery */
+		  2,
+		  4,
+		  5,
+		  7,
+		  9,
+		 11,
+		 13,
+		 18,
+		 20,
+		 24,
+		 29,
+		 33,
+		 40,
+		 50,
+		 67,
+		100,
+	})
+}

src/drivers/intel/gma/acpi/non-pch.asl

@@ -37,6 +37,6 @@ Device (GFX0)
 		BCLM, 16,
 	}
 
-#include "brightness_levels.asl"
+#include "configure_brightness_levels.asl"
 #include "common.asl"
 }

src/drivers/intel/gma/acpi/pch.asl

@@ -38,6 +38,6 @@ Device (GFX0)
 		BCLM, 16
 	}
 
-#include "brightness_levels.asl"
+#include "configure_brightness_levels.asl"
 #include "common.asl"
 }