trivial: fix typo "to to" in multiple files

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index a616731..f737337 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -38,7 +38,7 @@
  *   0.3a - implemented pools of write URBs
  *   0.3  - alpha version for public testing
  *   0.2  - TIOCMGET works, so autopilot(1) can be used!
- *   0.1  - can be used to to pilot-xfer -p /dev/ttyUSB0 -l
+ *   0.1  - can be used to do pilot-xfer -p /dev/ttyUSB0 -l
  *
  *   The driver skeleton is mainly based on mct_u232.c and various other
  *   pieces of code shamelessly copied from the drivers/usb/serial/ directory.