profiles: dnsmasq: add Waydroid pid file
Waydroid uses LXC and some lxc-net equivalent scripts. Allow that.
https://github.com/waydroid/waydroid/blob/b910c891740026aeba2cd6a86f93ca87ef57e3c6/data/scripts/waydroid-net.sh https://web.archive.org/web/20221202141315/https://docs.waydro.id/debugging/known-issues