treewide: Include <device/mmio.h> instead of <arch/mmio.h>

<device/mmio.h>` chain-include `<arch/mmio.h>:
https://doc.coreboot.org/contributing/coding_style.html#headers-and-includes

Also sort includes while on it.

Change-Id: Ie62e4295ce735a6ca74fbe2499b41aab2e76d506
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70291
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

src/device/xhci.c

@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
-#include <arch/mmio.h>
 #include <console/console.h>
+#include <device/mmio.h>
 #include <device/pci_def.h>
 #include <device/xhci.h>
 #include <string.h>