MT_MIB_MB_SDR0
val = mt76_rr(dev, MT_MIB_MB_SDR0(ext_phy, i));
val = mt76_rr(dev, MT_MIB_MB_SDR0(band, (i << 4)));
val = mt76_rr(dev, MT_MIB_MB_SDR0(band, (i << 2)));