reset: Grammar s/more then once/more than once/

Fix grammar in reset_control_get_exclusive() documentation comment.

Signed-off-by: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Philipp Zabel <[e-mail]>

include/linux/reset.h

···
  * @id: reset line name
  *
  * Returns a struct reset_control or IS_ERR() condition containing errno.
- * If this function is called more then once for the same reset_control it will
+ * If this function is called more than once for the same reset_control it will
  * return -EBUSY.
  *
  * See reset_control_get_shared for details on shared references to