mac80211: trivial: fix spelling in mesh_hwmp

Fix a typo in the description of hwmp_route_info_get(), no function
changes.

Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index e12a786..29b82e9 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -259,7 +259,7 @@
  * @hwmp_ie: hwmp information element (PREP or PREQ)
  *
  * This function updates the path routing information to the originator and the
- * transmitter of a HWMP PREQ or PREP fram.
+ * transmitter of a HWMP PREQ or PREP frame.
  *
  * Returns: metric to frame originator or 0 if the frame should not be further
  * processed