wireless: fix fatal kernel-doc error + warning in mac80211.h

Fix new kernel-doc Error and Warning in <net/mac80211.h>:

  Error(linux-2.6.39-git5/include/net/mac80211.h:550): cannot understand prototype: 'struct ieee80211_sched_scan_ies '
  Warning(linux-2.6.39-git5/include/net/mac80211.h:2289): No description found for parameter 'sta'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 8c7189c..e6d6a66 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -538,7 +538,7 @@
 };
 
 /**
- * ieee80211_sched_scan_ies - scheduled scan IEs
+ * struct ieee80211_sched_scan_ies - scheduled scan IEs
  *
  * This structure is used to pass the appropriate IEs to be used in scheduled
  * scans for all bands.  It contains both the IEs passed from the userspace
@@ -2278,6 +2278,7 @@
 
 /**
  * ieee80211_sta_set_tim - set the TIM bit for a sleeping station
+ * @sta: &struct ieee80211_sta pointer for the sleeping station
  *
  * If a driver buffers frames for a powersave station instead of passing
  * them back to mac80211 for retransmission, the station needs to be told