wifi: mac80211: set ieee80211_prep_tx_info::link_id upon Auth Rx

[ Upstream commit 8c60179b64434894eac1ffab7396bac131bc8b6e ]

This will be used by the low level driver.
Note that link_id  will be 0 in case of a non-MLO authentication.
Also fix a call-site of mgd_prepare_tx() where the link_id was not
populated.

Update the documentation to reflect the current state
ieee80211_prep_tx_info::link_id is also available in mgd_complete_tx().

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250205110958.6a590f189ce5.I1fc5c0da26b143f5b07191eb592f01f7083d55ae@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

include/net/mac80211.h

@@ -7,7 +7,7 @@
  * Copyright 2007-2010	Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
  * Copyright (C) 2015 - 2017 Intel Deutschland GmbH
- * Copyright (C) 2018 - 2024 Intel Corporation
+ * Copyright (C) 2018 - 2025 Intel Corporation
  */
 
 #ifndef MAC80211_H
@@ -3803,7 +3803,7 @@ enum ieee80211_reconfig_type {
  * @was_assoc: set if this call is due to deauth/disassoc
  *	while just having been associated
  * @link_id: the link id on which the frame will be TX'ed.
- *	Only used with the mgd_prepare_tx() method.
+ *	0 for a non-MLO connection.
  */
 struct ieee80211_prep_tx_info {
 	u16 duration;