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 <[e-mail]>
Cc: Andi Kleen <[e-mail]>
Cc: Christoph Lameter <[e-mail]>
Cc: Jack Steiner <[e-mail]>
Cc: Suresh B Siddha <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Ingo Molnar <[e-mail]>
Signed-off-by: Thomas Gleixner <[e-mail]>

arch/x86/kernel/smpboot_64.c

···
 	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);
 }