x86: move impress_friends and smp_check to cpus_done

the cpu count is changed accordingly: now, what matters is
online cpus.
Also, we add those functions for x86_64

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index a9cc911..c3e770b 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -824,12 +824,20 @@
 	return err;
 }
 
+extern void impress_friends(void);
+extern void smp_checks(void);
+
 /*
  * Finish the SMP boot.
  */
 void __init native_smp_cpus_done(unsigned int max_cpus)
 {
 	smp_cleanup_boot();
+
+	Dprintk("Boot done.\n");
+
+	impress_friends();
+	smp_checks();
 	setup_ioapic_dest();
 	check_nmi_watchdog();
 }