locktorture: Fix __acquire annotation for spinlock irq

Its quite easy to get mixed up with the names -- 'torture_spinlock_irq'
is not actually a valid spinlock name.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
diff --git a/kernel/locking/locktorture.c b/kernel/locking/locktorture.c
index 0762b25..9e9cd11 100644
--- a/kernel/locking/locktorture.c
+++ b/kernel/locking/locktorture.c
@@ -205,7 +205,7 @@
 };
 
 static int torture_spin_lock_write_lock_irq(void)
-__acquires(torture_spinlock_irq)
+__acquires(torture_spinlock)
 {
 	unsigned long flags;