This will facilitate providing a tcp-only version of the programs which due to TCP's very long timeouts will not need to use the Linux 5.8+ bpf_ktime_get_boot_ns() helpers. Test: atest, TreeHugger Signed-off-by: Maciej Żenczykowski <maze@google.com> Change-Id: I1e49b6758d3754782ac6f8820e0c15aa20e4c61d