[][MAC80211][hnat][Update multiple PPE allocation of the ETH for mt7988]

[Description]
Refactor multiple PPE allocation of the ETH for mt7988.

Without this patch, the driver is unable to correctly bind the entry
when the mtk_poll_rx() function retrieves the same hash index from
different PPEs.

[Release-log]
N/A


Change-Id: I410a8b2ea6a607f0187748dd2d49c8c2f80159af
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/8451088
2 files changed