tests: Restore links in deconfigured-cpus nodeinfo test

tests: Restore links in deconfigured-cpus nodeinfo test

When cleaning up the data (taken from a running system) for inclusion
I went a little too far and deleted a bunch of links that should have
been left alone. The test worked despite this because it was going
through a fallback code path.

A few other files are affected as well: again, the data is taken from
a running system, so even thought we would probably be okay if we
just added the links, aligning everything is definitely safer.