soc/amd/common: Call AmdS3FinalRestore

AMD support in coreboot has typically not used the AmdS3FinalRestore()
Entry Point.  Add a call to it immediately prior to resuming to the OS.

BUG=b:69614064
TEST=Check console log for execution

Change-Id: Iadc4438d8cda9766002f6edade3c7b00b23b98b4
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/23443
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

src/soc/amd/common/block/pi/Makefile.inc

@@ -10,6 +10,7 @@ romstage-y += heapmanager.c
 
 ramstage-y += agesawrapper.c
 ramstage-y += amd_late_init.c
+ramstage-$(CONFIG_HAVE_ACPI_RESUME) += amd_resume_final.c
 ramstage-y += def_callouts.c
 ramstage-y += heapmanager.c
 

src/soc/amd/common/block/pi/amd_resume_final.c

@@ -0,0 +1,25 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2018 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <bootstate.h>
+#include <amdblocks/agesawrapper_call.h>
+
+static void agesawrapper_s3finalrestore(void *unused)
+{
+	do_agesawrapper(agesawrapper_amds3finalrestore, "amds3finalrestore");
+}
+
+BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY,
+			agesawrapper_s3finalrestore, NULL);