Flag for detecting 802.11r Fast BSS Transition support

[Matthew Wang <matthewmwang@xxxxxxxxxx>]

Hi,

I'm wondering if there is a flag for detecting firmware/driver support
for FT. It seems like checking for SME support is a pretty good proxy
for this, but there is a non-mac80211 driver that can do FT as well
(ath/wil6210). It would be great if anyone knows of a feature flag
specifically for FT.

Thanks,
Matthew