* Add local option to refclock directive to stabilise system
clock with more stable free-running clock (e.g. TCXO, OCXO).
* Add maxdelayquant option to server/pool/peer directive to
replace maxdelaydevratio filter with long-term quantile-based
filtering.
* Add selection option to log directive.
* Allow external PPS in PHC refclock without configurable pin.
* Don't accept first interleaved response to minimise error in
delay.
* Don't use arc4random on Linux to avoid server performance loss.
* Improve filter option to better handle missing NTP samples.
* Improve stability with hardware timestamping and PHC refclock.
* Update seccomp filter
- Update clknetsim to snapshot f00531b.
- Use a more specific conditional for the /usr/etc stuff.
OBS-URL: https://build.opensuse.org/package/show/network:time/chrony?expand=0&rev=111
