nb/intel: Add missing <types.h>

Add needed but missing <types.h>.

Change-Id: I801be1ca8da4b1641941d5571d2aa298470f407b
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50578
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/northbridge/intel/haswell/raminit.c

@@ -16,6 +16,8 @@
 #include <spd.h>
 #include <security/vboot/vboot_common.h>
 #include <commonlib/region.h>
+#include <types.h>
+
 #include "raminit.h"
 #include "pei_data.h"
 #include "haswell.h"