amd/gardenia: Add globalnvs.asl

Stoney Ridge ASL uses global NVS for sharing data between ACPI and SMM.

Change-Id: I8f497870844da1f56ff5c3b126d5613be36a9bfb
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/22425
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>

src/mainboard/amd/gardenia/dsdt.asl

@@ -25,6 +25,9 @@ DefinitionBlock (
 {	/* Start of ASL file */
 	/* #include <arch/x86/acpi/debug.asl> */	/* as needed */
 
+	/* global NVS and variables */
+	#include <globalnvs.asl>
+
 	/* Globals for the platform */
 	#include "acpi/mainboard.asl"