Add libperf packages and build kernel tools for Fedora

When kernel-tools was split out to a separate package in Fedora, it was due to several factors. Most of those issues have been mitigated in other ways, and there are advantages to building tools with the kernel build. Let's turn on tools for Fedora. To do so, we need to add the libperf packages, but this enables them for Fedora only. It is worth noting that the Fedora package for bpftool will retain the upstream kernel versioning. This is because the bpftool versioning scheme is incompatible with the stable Fedora process.