pti: pti_tty_install documentation mispelling.

This patch tidies up the documentation for pti_tty_install()
function.

Signed-off-by: J Freyensee <james_p_freyensee@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/misc/pti.c b/drivers/misc/pti.c
index bb6f925..7281438 100644
--- a/drivers/misc/pti.c
+++ b/drivers/misc/pti.c
@@ -444,9 +444,9 @@
 }
 
 /**
- * pti_tty_intstall()- Used to set up specific master-channels
- *		       to tty ports for organizational purposes when
- *		       tracing viewed from debuging tools.
+ * pti_tty_install()- Used to set up specific master-channels
+ *		      to tty ports for organizational purposes when
+ *		      tracing viewed from debuging tools.
  *
  * @driver: tty driver information.
  * @tty: tty struct containing pti information.