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
diff --git a/src/drivers/siemens/nc_fpga/nc_fpga.c b/src/drivers/siemens/nc_fpga/nc_fpga.c
index ef1f2f2..fb681ad 100644
--- a/src/drivers/siemens/nc_fpga/nc_fpga.c
+++ b/src/drivers/siemens/nc_fpga/nc_fpga.c
@@ -19,9 +19,9 @@
 #include <device/pci_ops.h>
 #include <device/pci_def.h>
 #include <device/mmio.h>
-#include <delay.h>
 #include <hwilib.h>
 #include <bootstate.h>
+
 #include "nc_fpga.h"
 
 static void *nc_fpga_bar0;