bd82x6x: Merge common platform ASL code.

This code in reality just describes the southbridge features, don't put a copy
in every mainboard.

Change-Id: I8cf3019a36b1ae6a17d502e7508f36ea9fa62830
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/10231
Reviewed-by: Nicolas Reinecke <nr@das-labor.org>
Tested-by: build bot (Jenkins)

src/mainboard/google/link/acpi/platform.asl

@@ -17,44 +17,6 @@
  * Foundation, Inc.
  */
 
-/* The APM port can be used for generating software SMIs */
-
-OperationRegion (APMP, SystemIO, 0xb2, 2)
-Field (APMP, ByteAcc, NoLock, Preserve)
-{
-	APMC, 8,	// APM command
-	APMS, 8		// APM status
-}
-
-/* Port 80 POST */
-
-OperationRegion (POST, SystemIO, 0x80, 1)
-Field (POST, ByteAcc, Lock, Preserve)
-{
-	DBG0, 8
-}
-
-/* SMI I/O Trap */
-Method(TRAP, 1, Serialized)
-{
-	Store (Arg0, SMIF)	// SMI Function
-	Store (0, TRP0)		// Generate trap
-	Return (SMIF)		// Return value of SMI handler
-}
-
-/* The _PIC method is called by the OS to choose between interrupt
- * routing via the i8259 interrupt controller or the APIC.
- *
- * _PIC is called with a parameter of 0 for i8259 configuration and
- * with a parameter of 1 for Local Apic/IOAPIC configuration.
- */
-
-Method(_PIC, 1)
-{
-	// Remember the OS' IRQ routing choice.
-	Store(Arg0, PICM)
-}
-
 /* The _PTS method (Prepare To Sleep) is called before the OS is
  * entering a sleep state. The sleep state number is passed in Arg0
  */

src/mainboard/google/link/dsdt.asl

@@ -27,6 +27,8 @@ DefinitionBlock(
 	0x20110725	// OEM revision
 )
 {
+	#include <southbridge/intel/bd82x6x/acpi/platform.asl>
+
 	// Some generic macros
 	#include "acpi/platform.asl"
 	#include "acpi/mainboard.asl"