superio: Use 'include <stdlib.h>' when appropriate

Change-Id: I55e7b680e128f29a9fd549edfb676e6571330677
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32830
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

src/superio/smsc/fdc37n972/superio.c

@@ -17,7 +17,6 @@
 #include <device/pnp.h>
 #include <superio/conf_mode.h>
 #include <pc80/keyboard.h>
-#include <stdlib.h>
 
 #include "fdc37n972.h"
 

src/superio/smsc/kbc1100/superio.c

@@ -19,7 +19,7 @@
 #include <device/pnp.h>
 #include <superio/conf_mode.h>
 #include <pc80/keyboard.h>
-#include <stdlib.h>
+
 #include "kbc1100.h"
 
 /* Forward declarations */

src/superio/smsc/lpc47m10x/superio.c

@@ -22,7 +22,7 @@
 #include <device/pnp.h>
 #include <superio/conf_mode.h>
 #include <pc80/keyboard.h>
-#include <stdlib.h>
+
 #include "lpc47m10x.h"
 
 /**

src/superio/smsc/lpc47m15x/superio.c

@@ -19,7 +19,7 @@
 #include <device/pnp.h>
 #include <superio/conf_mode.h>
 #include <pc80/keyboard.h>
-#include <stdlib.h>
+
 #include "lpc47m15x.h"
 
 /* Forward declarations */

src/superio/smsc/lpc47n207/early_serial.c

@@ -16,7 +16,7 @@
 #include <arch/io.h>
 #include <device/pnp.h>
 #include <stdint.h>
-#include <stdlib.h>
+
 #include "lpc47n207.h"
 
 /*

src/superio/smsc/lpc47n217/superio.c

@@ -24,7 +24,7 @@
 #include <device/pnp.h>
 #include <console/console.h>
 #include <assert.h>
-#include <stdlib.h>
+
 #include "lpc47n217.h"
 
 /* Forward declarations */

src/superio/smsc/lpc47n227/superio.c

@@ -20,7 +20,6 @@
 #include <device/pnp.h>
 #include <console/console.h>
 #include <assert.h>
-#include <stdlib.h>
 #include <pc80/keyboard.h>
 #include <superio/conf_mode.h>
 

src/superio/smsc/mec1308/superio.c

@@ -19,7 +19,7 @@
 #include <device/pnp.h>
 #include <superio/conf_mode.h>
 #include <pc80/keyboard.h>
-#include <stdlib.h>
+
 #include "mec1308.h"
 
 static void mec1308_init(struct device *dev)

src/superio/smsc/sio1036/superio.c

@@ -18,7 +18,6 @@
 #include <device/device.h>
 #include <device/pnp.h>
 #include <superio/conf_mode.h>
-#include <stdlib.h>
 
 #include "sio1036.h"
 

src/superio/smsc/sio10n268/superio.c

@@ -13,10 +13,10 @@
  * GNU General Public License for more details.
  */
 
-#include <stdlib.h>
 #include <device/device.h>
 #include <device/pnp.h>
 #include <pc80/keyboard.h>
+
 #include "sio10n268.h"
 
 static void init(struct device *dev)

src/superio/smsc/smscsuperio/superio.c

@@ -35,7 +35,6 @@
 #include <superio/conf_mode.h>
 #include <console/console.h>
 #include <pc80/keyboard.h>
-#include <stdlib.h>
 
 /* The following Super I/O chips are currently supported by this driver: */
 #define LPC47M172	0x14