src: Include <arch/io.h> when appropriate

Change-Id: I4077b9dfeeb2a9126c35bbdd3d14c52e55a5e87c
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45404
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/include/device/pnp_ops.h

@@ -4,7 +4,6 @@
 #define __DEVICE_PNP_OPS_H__
 
 #include <stdint.h>
-#include <arch/io.h>
 #include <device/pnp.h>
 
 #if ENV_PNP_SIMPLE_DEVICE