x86: efi: app: Display correct CPU info during boot

Currently when EFI application boots, it says:

  CPU: x86_64, vendor <invalid cpu vendor>, device 0h

Fix this by calling x86_cpu_init_f() in arch_cpu_init().

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

arch/x86/cpu/efi/app.c

@@ -9,7 +9,7 @@
 
 int arch_cpu_init(void)
 {
-	return 0;
+	return x86_cpu_init_f();
 }
 
 int checkcpu(void)