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/ipmi_smi.h b/include/linux/ipmi_smi.h
index fcb5d44..8ea3fe0 100644
--- a/include/linux/ipmi_smi.h
+++ b/include/linux/ipmi_smi.h
@@ -216,7 +216,7 @@
 
 /*
  * The lower layer reports received messages through this interface.
- * The data_size should be zero if this is an asyncronous message.  If
+ * The data_size should be zero if this is an asynchronous message.  If
  * the lower layer gets an error sending a message, it should format
  * an error response in the message response.
  */