[][openwrt][mt7988][crypto][Refactor config file for IPSec WebUI]

[Description]
Refactor config file for IPSec WebUI.
Changes as follow:
1. Deprecate ipsec service, use swanctl instead.
2. Add mutiple local/remote subnet for a connection.
3. Add option to switch between IPSec tunnel mode and transport mode.
4. Add option to enable packet offload for supporting full hw offload.
5. Add new algorithm (3DES-MD5) option.

[Release-log]
N/A


Change-Id: I2395d9f4e8b2c7c1e24b8b1acb37e24850511d64
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/8550741
1 file changed