soc/amd/common: Add amdblocks/spi.h

Add the spi header for spi function prototypes. Fixes spi.c build
error for the missing header.

Change-Id: I0dbb5bf84cc3462a7aa58a5531d6b8b8bc8ca4df
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/22793
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/soc/amd/common/block/include/amdblocks/spi.h

@@ -0,0 +1,23 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2017 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.
+ */
+
+#ifndef __AMD_SPI_H__
+#define __AMD_SPI_H__
+
+#include <stdint.h>
+
+void spi_SaveS3info(u32 pos, u32 size, u8 *buf, u32 len);
+
+#endif /* __AMD_SPI_H__ */

src/soc/amd/common/spi.c

@@ -16,7 +16,7 @@
 #include <console/console.h>
 #include <spi-generic.h>
 #include <spi_flash.h>
-#include "s3_resume.h"
+#include <amdblocks/spi.h>
 
 void spi_SaveS3info(u32 pos, u32 size, u8 *buf, u32 len)
 {