trivial: Miscellaneous documentation typo fixes

Fix various typos in documentation txts.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/Documentation/networking/regulatory.txt b/Documentation/networking/regulatory.txt
index dcf3164..eaa1a25 100644
--- a/Documentation/networking/regulatory.txt
+++ b/Documentation/networking/regulatory.txt
@@ -89,7 +89,7 @@
 Device drivers who provide their own built regulatory domain
 do not need a callback as the channels registered by them are
 the only ones that will be allowed and therefore *additional*
-cannels cannot be enabled.
+channels cannot be enabled.
 
 Example code - drivers hinting an alpha2:
 ------------------------------------------