src: Use include <delay.h> when appropriate

Change-Id: I23bc0191ca8fcd88364e5c08be7c90195019e399
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32012
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: David Guckian

src/northbridge/intel/x4x/raminit.c

@@ -21,15 +21,12 @@
 #include <cpu/x86/cache.h>
 #include <cpu/x86/mtrr.h>
 #include <arch/cpu.h>
-#include <delay.h>
 #include <halt.h>
-#include "iomap.h"
 #if CONFIG(SOUTHBRIDGE_INTEL_I82801GX)
 #include <southbridge/intel/i82801gx/i82801gx.h> /* smbus_read_byte */
 #else
 #include <southbridge/intel/i82801jx/i82801jx.h> /* smbus_read_byte */
 #endif
-#include "x4x.h"
 #include <spd.h>
 #include <string.h>
 #include <device/dram/ddr2.h>
@@ -37,6 +34,9 @@
 #include <mrc_cache.h>
 #include <timestamp.h>
 
+#include "iomap.h"
+#include "x4x.h"
+
 #define MRC_CACHE_VERSION 0
 
 static inline int spd_read_byte(unsigned int device, unsigned int address)