hostapd: fix 11r defaults when using SAE

hostapd: fix 11r defaults when using SAE

When using WPA3-SAE or WPA2/WPA3 Personal Mixed, we can not use
ft_psk_generate_local because it will break FT for SAE. Instead
use the r0kh and r1kh configuration approach.

Signed-off-by: Jesus Fernandez Manzano <jesus.manzano@galgus.ai>
(cherry picked from commit e2f6bfb833a1ba099e1dcf0e569e4ef11c31c391)
Fixes: https://github.com/openwrt/luci/issues/6930
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Link: https://github.com/openwrt/openwrt/pull/15899
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>