[][MAC80211][hostapd][Add security in 6GHz band in mac80211.sh]

[Description]
Add encryprion 'sae' & key in etc/config/wireless for 6GHz band

[Release-log]
N/A

Change-Id: Ide622ddfb5350651fdde80ac5b36f5072395587b
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6155294
1 file changed