[LEDE-DEV] hostapd: Default disable b rates, add legacy_rates

[Nick Lowe]

Hi,

In practice, this should stop most stations from using the non-OFDM
rates and should also retain compatibility with g or n stations that
were to still make some use of barker coding/CCK modulation when
sending some frames.
I think that this is a preferable approach therefore for default
behaviour while also being sufficient to achieve the airtime
efficiency goals.

Do you observe different airtime results?

Cheers,

Nick