nb/intel/x/bootblock.c Revert include <arch/pci_io_cfg.h>

This partially reverts:

- Commit 77d3b655ed
- Commit 487c1a24f5
- Commit 875c21f491
- Commit c4d1b47ad9
- Commit b96c358751
- Commit 9cbf26d18e

It is intentional to use <device/pci_ops.h> whenever one needs to use
PCI config access. The bootblock.c files needing I/O config do not need
to be an exception to this.

Change-Id: Ifba05717dad404a844618815c5347a05e07a3362
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50231
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>

src/northbridge/intel/x4x/bootblock.c

@@ -2,8 +2,8 @@
 
 #include <arch/bootblock.h>
 #include <arch/mmio.h>
-#include <arch/pci_io_cfg.h>
 #include <assert.h>
+#include <device/pci_ops.h>
 #include <types.h>
 
 #include "x4x.h"