x86/cpu: Convert printk(KERN_<LEVEL> ...) to pr_<level>(...)

- Use the more current logging style pr_<level>(...) instead of the old
   printk(KERN_<LEVEL> ...).

 - Convert pr_warning() to pr_warn().

Signed-off-by: Chen Yucong <slaoub@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1454384702-21707-1-git-send-email-slaoub@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

arch/x86/kernel/cpu/topology.c

@@ -87,10 +87,10 @@ void detect_extended_topology(struct cpuinfo_x86 *c)
 	c->x86_max_cores = (core_level_siblings / smp_num_siblings);
 
 	if (!printed) {
-		printk(KERN_INFO  "CPU: Physical Processor ID: %d\n",
+		pr_info("CPU: Physical Processor ID: %d\n",
 		       c->phys_proc_id);
 		if (c->x86_max_cores > 1)
-			printk(KERN_INFO  "CPU: Processor Core ID: %d\n",
+			pr_info("CPU: Processor Core ID: %d\n",
 			       c->cpu_core_id);
 		printed = 1;
 	}