67f4aa3878
This sets up: * vht capabilities in vaps; * calls vht_announce to announce VHT capabilities if any; * sets up vht20, vht40 and vht80 channels, assuming the regulatory code does the right thing with 80MHz available ranges; * adds support to the ieee80211_add_channel_list_5ghz() code to populate VHT channels, as this is the API my ath10k driver is using; * add support for the freq1/freq2 field population and lookup that VHT channels require. The VHT80 code assumes that the regulatory domain already has limited VHT80 bands to, well, 80MHz wide chunks.
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