[][MAC80211][hostapd][Add beacon_prot config]

[Description]
Add beacon_prot config

[Release-log]
N/A

Change-Id: If96475fa50e0ba621e13deee1c1500916d5d6b0f
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7306898
1 file changed