[][MAC80211][hnat][Fix unbind issue for ADMAv1]

[Description]
Fix unbind issue for ADMAv1.

Refactor internal patches since ADMA hardware version have been
reverted to the v1.

[Release-log]
N/A


Change-Id: Ie3012c3b643c82ff9ec0aa6d2af0ce77925e462e
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7248833
3 files changed