[][mac80211][wifi6][mt76][Fix rebase errors]

[Description]
Fix errors.
1. Move mvif->sta.vif initialization to 1000 patch because it is used
by ple_info.
2. Do not report csa event to mac80211 when csa is not active or it is
a station interface.

[Release-log]
N/A

Change-Id: I2a33a64524025982de502c60265f284662dac335
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/8102815
4 files changed