x86, mce: rename mce_notify_user to mce_notify_irq

Rename the mce_notify_user function to mce_notify_irq. The next
patch will split the wakeup handling of interrupt context
and of process context and it's better to give it a clearer
name for this.

Contains a fix from Ying Huang

[ Impact: cleanup ]

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

arch/x86/kernel/cpu/mcheck/mce-inject.c

@@ -65,7 +65,7 @@ static void raise_mce(unsigned long data)
 		memset(&b, 0xff, sizeof(mce_banks_t));
 		printk(KERN_INFO "Starting machine check poll CPU %d\n", cpu);
 		machine_check_poll(0, &b);
-		mce_notify_user();
+		mce_notify_irq();
 		printk(KERN_INFO "Finished machine check poll on CPU %d\n",
 		       cpu);
 	}