device/mmio.h: Add include file for MMIO ops

MMIO operations are arch-agnostic so the include
path should not be arch/.

Change-Id: I0fd70f5aeca02e98e96b980c3aca0819f5c44b98
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31691
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/northbridge/intel/gm45/gma.c b/src/northbridge/intel/gm45/gma.c
index 347a5ae..4a5ebbd 100644
--- a/src/northbridge/intel/gm45/gma.c
+++ b/src/northbridge/intel/gm45/gma.c
@@ -14,7 +14,7 @@
  * GNU General Public License for more details.
  */
 
-#include <arch/io.h>
+#include <device/mmio.h>
 #include <console/console.h>
 #include <delay.h>
 #include <device/device.h>
diff --git a/src/northbridge/intel/gm45/raminit.c b/src/northbridge/intel/gm45/raminit.c
index d4209dc..2826d74 100644
--- a/src/northbridge/intel/gm45/raminit.c
+++ b/src/northbridge/intel/gm45/raminit.c
@@ -17,7 +17,7 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <arch/cpu.h>
-#include <arch/io.h>
+#include <device/mmio.h>
 #include <device/pci_ops.h>
 #include <device/pci_def.h>
 #include <device/device.h>
diff --git a/src/northbridge/intel/gm45/raminit_read_write_training.c b/src/northbridge/intel/gm45/raminit_read_write_training.c
index 49e565f..3f5dbca 100644
--- a/src/northbridge/intel/gm45/raminit_read_write_training.c
+++ b/src/northbridge/intel/gm45/raminit_read_write_training.c
@@ -15,7 +15,7 @@
  */
 
 #include <stdint.h>
-#include <arch/io.h>
+#include <device/mmio.h>
 #include <pc80/mc146818rtc.h>
 #include <console/console.h>
 #include "gm45.h"
diff --git a/src/northbridge/intel/gm45/raminit_receive_enable_calibration.c b/src/northbridge/intel/gm45/raminit_receive_enable_calibration.c
index 7d57a4e..7c7f56d 100644
--- a/src/northbridge/intel/gm45/raminit_receive_enable_calibration.c
+++ b/src/northbridge/intel/gm45/raminit_receive_enable_calibration.c
@@ -15,7 +15,7 @@
  */
 
 #include <stdint.h>
-#include <arch/io.h>
+#include <device/mmio.h>
 #include <console/console.h>
 #include "gm45.h"