By default, the network interface stats are based on software counters,
which only consider traffic from and to the CPU. Implementing the
get_stats64 method allows to report the full hardware counters instead.
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
Link: https://github.com/openwrt/openwrt/pull/18415
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>