x86: Remove <common.h> and add needed includes

Remove <common.h> from all x86 architecture files and when needed add
missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/x86/cpu/efi/app.c b/arch/x86/cpu/efi/app.c
index f754489..218a68c 100644
--- a/arch/x86/cpu/efi/app.c
+++ b/arch/x86/cpu/efi/app.c
@@ -3,11 +3,11 @@
  * Copyright (c) 2015 Google, Inc
  */
 
-#include <common.h>
 #include <cpu_func.h>
 #include <fdtdec.h>
 #include <init.h>
 #include <netdev.h>
+#include <asm/u-boot-x86.h>
 
 int arch_cpu_init(void)
 {