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/power/regulator/overview.txt b/Documentation/power/regulator/overview.txt
index bdcb332..0cded69 100644
--- a/Documentation/power/regulator/overview.txt
+++ b/Documentation/power/regulator/overview.txt
@@ -119,7 +119,7 @@
                    battery power, USB power)
 
                    Regulator Domains: is the new current limit within the
-                   regulator operating parameters for input/ouput voltage.
+                   regulator operating parameters for input/output voltage.
 
                    If the regulator request passes all the constraint tests
                    then the new regulator value is applied.