[][MAC80211][hostapd][Fix itxbfen default to disable]

[Description]
Fix itxbfen default to disable

[Release-log]
N/A

Change-Id: I41586cfdde1313fdd0b78c66fddbe80d095b760f
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7479892
1 file changed