[][openwrt][mt7988][tops][Change script 98-mtk-vpn]

[Description]
Change script '98-mtk-vpn' to allow L2TP binding in HNAT.
Without this patch, HNAT will be disabled whenever L2TP
interface is up.

[Release-log]
N/A


Change-Id: Ib8244d087dcda4a41441c1cb8afc9014d8850b43
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7506315
1 file changed