src/northbridge: Remove unused <stdlib.h>

Change-Id: I7a214196b05d3af06c8cd742a6154b0627a0d82f
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33685
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/northbridge/intel/pineview/early_init.c

@@ -14,7 +14,6 @@
  * GNU General Public License for more details.
  */
 
-#include <stdlib.h>
 #include <console/console.h>
 #include <arch/io.h>
 #include <device/pci_ops.h>

src/northbridge/intel/pineview/northbridge.c

@@ -20,7 +20,6 @@
 #include <stdint.h>
 #include <device/device.h>
 #include <device/pci.h>
-#include <stdlib.h>
 #include <boot/tables.h>
 #include <arch/acpi.h>
 #include <northbridge/intel/pineview/pineview.h>