drivers/spi: Sanitize headers from preprocessor abuse

Continuing on from the rational given in:

a173a62 Remove guarding #includes by CONFIG_FOO combinations

Change-Id: I35c636ee7c0b106323b3e4b90629f7262750f8bd
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6114
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

src/drivers/spi/adesto.c

@@ -12,6 +12,7 @@
 
 #include <stdlib.h>
 #include <spi_flash.h>
+
 #include "spi_flash_internal.h"
 
 /* at25dfxx-specific commands */

src/drivers/spi/amic.c

@@ -10,6 +10,7 @@
 
 #include <stdlib.h>
 #include <spi_flash.h>
+
 #include "spi_flash_internal.h"
 
 /* A25L-specific commands */

src/drivers/spi/eon.c

@@ -6,6 +6,7 @@
 
 #include <stdlib.h>
 #include <spi_flash.h>
+
 #include "spi_flash_internal.h"
 
 /* EN25Q128-specific commands */

src/drivers/spi/gigadevice.c

@@ -28,6 +28,7 @@
 
 #include <stdlib.h>
 #include <spi_flash.h>
+
 #include "spi_flash_internal.h"
 
 /* GD25Pxx-specific commands */

src/drivers/spi/macronix.c

@@ -31,6 +31,7 @@
 
 #include <stdlib.h>
 #include <spi_flash.h>
+
 #include "spi_flash_internal.h"
 
 /* MX25xx-specific commands */

src/drivers/spi/spansion.c

@@ -27,6 +27,7 @@
 
 #include <stdlib.h>
 #include <spi_flash.h>
+
 #include "spi_flash_internal.h"
 
 /* S25FLxx-specific commands */

src/drivers/spi/spi_flash.c

@@ -7,14 +7,13 @@
  * Licensed under the GPL-2 or later.
  */
 
+#include <cpu/x86/smm.h>
+#include <delay.h>
 #include <stdlib.h>
 #include <string.h>
 #include <spi-generic.h>
 #include <spi_flash.h>
-#include <delay.h>
-#ifdef __SMM__
-#include <cpu/x86/smm.h>
-#endif
+
 #include "spi_flash_internal.h"
 #include <timer.h>
 

src/drivers/spi/spi_flash_internal.h

@@ -4,6 +4,9 @@
  * Copyright (C) 2008 Atmel Corporation
  */
 
+#ifndef SPI_FLASH_INTERNAL_H
+#define SPI_FLASH_INTERNAL_H
+
 /* Common parameters -- kind of high, but they should only occur when there
  * is a problem (and well your system already is broken), so err on the side
  * of caution in case we're dealing with slower SPI buses and/or processors.
@@ -83,3 +86,5 @@ struct spi_flash *spi_flash_probe_gigadevice(struct spi_slave *spi,
 					     u8 *idcode);
 struct spi_flash *spi_flash_probe_adesto(struct spi_slave *spi, u8 *idcode);
 struct spi_flash *spi_fram_probe_ramtron(struct spi_slave *spi, u8 *idcode);
+
+#endif /* SPI_FLASH_INTERNAL_H */

src/drivers/spi/sst.c

@@ -14,6 +14,7 @@
 
 #include <stdlib.h>
 #include <spi_flash.h>
+
 #include "spi_flash_internal.h"
 
 #define CMD_SST_WREN		0x06	/* Write Enable */

src/drivers/spi/stmicro.c

@@ -29,6 +29,7 @@
 
 #include <stdlib.h>
 #include <spi_flash.h>
+
 #include "spi_flash_internal.h"
 
 /* M25Pxx-specific commands */

src/drivers/spi/winbond.c

@@ -6,6 +6,7 @@
 
 #include <stdlib.h>
 #include <spi_flash.h>
+
 #include "spi_flash_internal.h"
 
 /* M25Pxx-specific commands */