soc/amd: move acpi_wake_source.asl to common directory

Files are both identical and common for both SoCs.

Change-Id: I54b78108d342a0fd03bf70ffe6a09695c5678eb4
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42545
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/kahlee/dsdt.asl

@@ -34,7 +34,7 @@ DefinitionBlock (
 	#include <variant/acpi/sleep.asl>
 
 	/* Contains _SWS methods */
-	#include <acpi_wake_source.asl>
+	#include <soc/amd/common/acpi/acpi_wake_source.asl>
 
 	/* System Bus */
 	Scope(\_SB) { /* Start \_SB scope */

src/mainboard/google/zork/dsdt.asl

@@ -35,7 +35,7 @@ DefinitionBlock (
 	#include <variant/acpi/sleep.asl>
 
 	/* Contains _SWS methods */
-	#include <acpi_wake_source.asl>
+	#include <soc/amd/common/acpi/acpi_wake_source.asl>
 
 	/* System Bus */
 	Scope(\_SB) { /* Start \_SB scope */

src/soc/amd/common/acpi/acpi_wake_source.asl

@@ -1,5 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+/* The SoC-specific code needs to provide the PM1I and GPEI fields */
+
 Scope (\_SB)
 {
 	Method (_SWS)

src/soc/amd/stoneyridge/acpi/acpi_wake_source.asl

@@ -1,19 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-Scope (\_SB)
-{
-	Method (_SWS)
-	{
-		/* Index into PM1 for device that caused wake */
-		Return (\PM1I)
-	}
-}
-
-Scope (\_GPE)
-{
-	Method (_SWS)
-	{
-		/* Index into GPE for device that caused wake */
-		Return (\GPEI)
-	}
-}