cpu/intel/common: Use a common acpi/cpu.asl file

Change-Id: Ifa5a3a22771ff2e0efa14fb765603fd5e0440d59
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/29894
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: David Guckian

src/mainboard/intel/kunimitsu/dsdt.asl

@@ -32,7 +32,7 @@ DefinitionBlock(
 	#include <soc/intel/skylake/acpi/globalnvs.asl>
 
 	// CPU
-	#include <soc/intel/skylake/acpi/cpu.asl>
+	#include <cpu/intel/common/acpi/cpu.asl>
 
 	Scope (\_SB) {
 		Device (PCI0)