wireless: fix kernel-doc

Fix most kernel-doc warnings, for some reason it
seems to have issues with __aligned, don't remove
the documentation entries it considers to be in
excess due to that.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/sta_info.h

@@ -298,6 +298,7 @@ struct sta_ampdu_mlme {
  * @beacon_loss_count: number of times beacon loss has triggered
  * @supports_40mhz: tracks whether the station advertised 40 MHz support
  *	as we overwrite its HT parameters with the currently used value
+ * @rcu_head: RCU head used for freeing this station struct
  */
 struct sta_info {
 	/* General information, mostly static */