Add additional packages to go branch

We're missing several packages that runsc doesn't depend on. Most notable are
several tcpip link packages.

To find packages, I looked at a diff of directories on master vs go:

$ bazel build //:gopath
$ find bazel-bin/gopath/src/gvisor.dev/gvisor/ -type d > /tmp/gopath.txt
$ find . -type d > /tmp/master.txt
$ sed 's|bazel-bin/gopath/src/gvisor.dev/gvisor/||' < /tmp/gopath.txt > /tmp/gopath.trunc.txt
$ sed 's|./||' < /tmp/master.txt > /tmp/master.trunc.txt
$ vimdiff /tmp/gopath.trunc.txt /tmp/master.trunc.txt

Testing packages are still left out because :gopath can't depend on testonly
targets...

PiperOrigin-RevId: 285049029

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