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/soc/intel/baytrail/bootblock/bootblock.c

@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <arch/bootblock.h>
+#include <arch/io.h>
 #include <device/pci_ops.h>
 #include <soc/iosf.h>
 #include <soc/iomap.h>