x86: fix show cpuinfo cpu number always zero

when called by setup_arch) after smp_store_cpu_info() had set it to the
correct value.

The error shows up in 'cat /proc/cpuinfo' will all cpus = 0.
Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Jack Steiner <steiner@sgi.com>
Cc: Suresh B Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

arch/x86/kernel/smpboot_64.c

@@ -141,8 +141,8 @@ static void __cpuinit smp_store_cpu_info(int id)
 	struct cpuinfo_x86 *c = &cpu_data(id);
 
 	*c = boot_cpu_data;
-	c->cpu_index = id;
 	identify_cpu(c);
+	c->cpu_index = id;
 	print_cpu_info(c);
 }