[][Kernel][mt7988][hnat][Revise HNAT version number]

Change HNAT version number to align with NETSYS version number.
    - version 1.1: mt7621, mt7623
    - version 1.2: mt7622
    - version 1.3: mt7629
    - version 2: mt7981, mt7986
    - version 3: mt7988

If without this patch, we might get confused between HNAT and
NETSYS version number.


Change-Id: I8b15a44050e9312f0b672c850d6ad7e9769d36f3
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6858141
5 files changed