treewide: Fix typo in xml/driver-api/basics.xml

This patch fix spelling typos found in
Documentation/output/xml/driver-api/basics.xml.
It is because the xml file was generated from comments in source,
so I had to fix the comments.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

kernel/time/timer.c

@@ -1120,7 +1120,7 @@ void add_timer_on(struct timer_list *timer, int cpu)
 EXPORT_SYMBOL_GPL(add_timer_on);
 
 /**
- * del_timer - deactive a timer.
+ * del_timer - deactivate a timer.
  * @timer: the timer to be deactivated
  *
  * del_timer() deactivates a timer - this works on both active and inactive