[][SW should not enable UDP_IP4F_NAT_EN]

[Description]
Remove useless flag, SW should not enable UDP_IP4F_NAT_EN in hnat_start.
HW not support UDP_IP4F_NAT_EN, when receive UDP fragement pkts,
recalculate udp checksum incorrect.

[Release-log]
N/A

Change-Id: Ia56b12845d7be9962ca58762c0657c3231872c13
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5843691
1 file changed