Fix grammar in kernel-doc for dvb_frontend_sleep_until() by replacing
"Its" to "It's".

Signed-off-by: Jesung Yang <y.j3ms.n@gmail.com>
---
 include/media/dvb_frontend.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/media/dvb_frontend.h b/include/media/dvb_frontend.h
index 607f7645468e..12143f0b14a8 100644
--- a/include/media/dvb_frontend.h
+++ b/include/media/dvb_frontend.h
@@ -818,7 +818,7 @@ void dvb_frontend_reinitialise(struct dvb_frontend *fe);
  * as possible, as it affects the detection of the dish tone command at the
  * satellite subsystem.
  *
- * Its used internally by the DVB frontend core, in order to emulate
+ * It's used internally by the DVB frontend core, in order to emulate
  * FE_DISHNETWORK_SEND_LEGACY_CMD() using the &dvb_frontend_ops.set_voltage\(\)
  * callback.
  *
-- 
2.39.5