This time, we have some pretty impactful work. Among the changes: * changes to make PTK rekeying work better, or actually better/safely if drivers get updated * VHT extended NSS support - some APs had capabilities that didn't fit into the VHT (11ac) spec, so the spec was updated and we follow that now * some TXQ and A-MSDU building work - will allow iwlwifi to use this soon * more HE work, including aligning to 802.11ax Draft 3.0 * L-SIG and 0-length-PSDU support in radiotap