x86: efi: payload: Add arch_cpu_init()

This adds arch_cpu_init() to the payload codes, in preparation for
supporting a generic efi payload.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/x86/cpu/efi/payload.c

@@ -5,11 +5,9 @@
  */
 
 #include <common.h>
-#include <debug_uart.h>
 #include <efi.h>
 #include <errno.h>
-#include <linux/err.h>
-#include <linux/types.h>
+#include <asm/post.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -126,6 +124,13 @@ int dram_init_banksize(void)
 	return 0;
 }
 
+int arch_cpu_init(void)
+{
+	post_code(POST_CPU_INIT);
+
+	return x86_cpu_init_f();
+}
+
 int checkcpu(void)
 {
 	return 0;