[][kernel][common][hnat][Fix Issue of nf_conntrack statistics missing after read all_entry]

[Description]
Fix Issue of nf_conntrack statistics missing after after all_entry

Without this patch, the all_entry read operation would not update
nf_conntrack statistics, then the statistic values would be missing.

[Release-log]
N/A


Change-Id: I85040e13a98ff5f334bf0be78ea2298fb11cdf47
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/9116932
3 files changed