wifi: support for VHT160 mode of Wi-Fi cards
Foris-controller doesn't allow VHT160 mode in configuration and in turn, foris tab will crash because of that and ReForis will fail to fetch data as well.
Alter json schema to support VHT160 mode.
https://forum.turris.cz/t/wlan-5g-not-starting-most-of-the-time/1828
Blocked by: #116 (closed)
Edited by Martin Matějek