Move mcu buffer allocation in mt76x2u/mt76x0u drivers since newer
chipsets (e.g. mt7663u) does not rely on synchronous mcu communication
Co-developed-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>