{device,drivers}: Include <cpu/cpu.h> instead of <arch/cpu.h>

Also sort includes.

Change-Id: I1727bf56b4090d040aab413006dec7aca0587d44
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69038
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

src/device/oprom/realmode/x86.h

@@ -3,7 +3,7 @@
 #ifndef __DEVICE_OPROM_REALMODE_X86_H__
 #define __DEVICE_OPROM_REALMODE_X86_H__
 
-#include <arch/cpu.h>
+#include <cpu/cpu.h>
 #include <stdint.h>
 
 #define REALMODE_BASE ((void *)0x600)