Enable IPv4PacketInfo and Ipv6PacketInfo on more OSes.
Enable IPv4PacketInfo and Ipv6PacketInfo on more OSes.

This was an oversight from PR #1002

carllerche/nix-rust,geofft/nix-rust,geofft/nix-rust,asomers/nix,nix-rust/nix,asomers/nix,carllerche/nix-rust,nix-rust/nix,geofft/nix-rust,carllerche/nix-rust