mt76: mt7921s: fix missing fc type/sub-type for 802.11 pkts

mt76: mt7921s: fix missing fc type/sub-type for 802.11 pkts

[ Upstream commit 355c060d5f38a784822d544e969121a273bcf545 ]

For non-mmio devices, should set fc values to proper txwi config

Fixes: 48fab5bbef40 ("mt76: mt7921: introduce mt7921s support")
Tested-by: Sean Wang <sean.wang@mediatek.com>
Co-developed-by: Leon Yen <Leon.Yen@mediatek.com>
Signed-off-by: Leon Yen <Leon.Yen@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>