MT_WMM_CWMIN
val = mt76_rr(dev, MT_WMM_CWMIN);
mt76_wr(dev, MT_WMM_CWMIN, val);
val = mt76_rr(dev, MT_WMM_CWMIN);
mt76_wr(dev, MT_WMM_CWMIN, val);
mt76_wr(dev, MT_WMM_CWMIN, 0x2344);
val = mt76_rr(dev, MT_WMM_CWMIN);
mt76_wr(dev, MT_WMM_CWMIN, val);