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/x4x/memmap.c

@@ -4,7 +4,6 @@
 
 #include <cbmem.h>
 #include <commonlib/helpers.h>
-#include <stdint.h>
 #include <arch/romstage.h>
 #include <device/pci_ops.h>
 #include <device/pci_def.h>
@@ -14,6 +13,7 @@
 #include <northbridge/intel/x4x/x4x.h>
 #include <program_loading.h>
 #include <cpu/intel/smm_reloc.h>
+#include <types.h>
 
 /** Decodes used Graphics Mode Select (GMS) to kilobytes. */
 u32 decode_igd_memory_size(const u32 gms)