[][kernel][mt7988][eip197][Fix EIP197 inline checksum error]

[Description]
Fix EIP197 inline checksum error.
Compute checksum value accumulated over ESP source and ESP destination
IP addresses.

[Release-log]
N/A

Change-Id: I77a3201121b94fa895200f1570bc8f1b89ebb2b6
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6879251
1 file changed