LinuxKPI, dev: 80211 update mac80211 KPI

Update the mac80211 ops KPI for (*conf_tx), (*assign_vif_chanctx),
(*unassign_vif_chanctx), (*start_ap), and (*stop_ap), as well as
ieee80211_beacon_get_tim() and ieee80211_beacon_get_template().

Update in-tree drivers iwlwifi and rtw88 accordingly based on upstream
changes (as well as out-of-tree ones). This was triggered by trying to
synchronize more drivers to a common state.

MFC after: 1 week