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/soc/intel/baytrail/gfx.c

@@ -16,14 +16,12 @@
 #include <device/mmio.h>
 #include <device/pci_ops.h>
 #include <console/console.h>
-#include <delay.h>
 #include <device/device.h>
 #include <device/pci.h>
 #include <device/pci_ids.h>
 #include <drivers/intel/gma/opregion.h>
 #include <reg_script.h>
 #include <stdlib.h>
-
 #include <soc/gfx.h>
 #include <soc/iosf.h>
 #include <soc/nvs.h>