various: Fix spelling of "asynchronous" in comments.

"Asynchronous" is misspelled in some comments. No code changes.

Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/include/linux/dlm.h b/include/linux/dlm.h
index 1d47dcc..d02da2c 100644
--- a/include/linux/dlm.h
+++ b/include/linux/dlm.h
@@ -98,7 +98,7 @@
 /*
  * dlm_lock
  *
- * Make an asyncronous request to acquire or convert a lock on a named
+ * Make an asynchronous request to acquire or convert a lock on a named
  * resource.
  *
  * lockspace: context for the request