wifi: mac80211: allow for_each_sta_active_link() under RCU

Since we only use this to protect the dereference and with
STA mutex, we can also allow this with just RCU.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230920211508.73c3e04985f4.I52ef396d693e0e381a73eade06850137d8900948@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

include/net/mac80211.h

@@ -2393,7 +2393,7 @@ static inline bool lockdep_sta_mutex_held(struct ieee80211_sta *pubsta)
 	for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++)		\
 		if ((!(vif)->active_links ||					\
 		     (vif)->active_links & BIT(link_id)) &&			\
-		    ((link_sta) = link_sta_dereference_protected(sta, link_id)))
+		    ((link_sta) = link_sta_dereference_check(sta, link_id)))
 
 /**
  * enum sta_notify_cmd - sta notify command