patch 46/47 causes NULL pointer deref on mt7921

[Bert Karwatzki]

The mt7925_ops struct contains these four ieee80211_ops which
are not present in the mt7921_ops struct. In mt7925_change_vif_links
mconf->vif is set.

from drivers/net/wireless/mediatek/mt76/mt7925/main.c:
	.vif_cfg_changed = mt7925_vif_cfg_changed,
	.link_info_changed = mt7925_link_info_changed,
	.change_vif_links = mt7925_change_vif_links,
	.change_sta_links = mt7925_change_sta_links,

So I think you're probably breaking generic code (i. e. code that is also used
on mt7921) with mt7925 specific changes.

Bert Karwatzki