[PATCH] hwmon: Static function fixes, 3 of 4

Fixup functions that have been declared static
and then actually defined without the static on.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>