workqueue: fix typo in WQ_AFFN_SMT comment

Fix "poer" -> "per" in the WQ_AFFN_SMT enum comment.

Signed-off-by: Breno Leitao <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>

Author: leitao

include/linux/workqueue.h

@@ -131,7 +131,7 @@ struct rcu_work {
 enum wq_affn_scope {
 	WQ_AFFN_DFL,			/* use system default */
 	WQ_AFFN_CPU,			/* one pod per CPU */
-	WQ_AFFN_SMT,			/* one pod poer SMT */
+	WQ_AFFN_SMT,			/* one pod per SMT */
 	WQ_AFFN_CACHE,			/* one pod per LLC */
 	WQ_AFFN_NUMA,			/* one pod per NUMA node */
 	WQ_AFFN_SYSTEM,			/* one pod across the whole system */