Missing license files in virtio-vsock crate

[sandrobonazzola]

$ rust2rpm -t fedora -a -s virtio-vsock 0.6.0
Downloading virtio-vsock-0.6.0.crate: 100%|██████████████████████████████████████████████████████████████████████████████████████████████| 11.2k/11.2k [00:00<00:00, 249kB/s]
ERROR: No license files were detected. In almost all cases, this is an issue
       with the upstream project that should be reported.

Looks like license files are missing in the cargo package for virto-vsock.

[epilys]

It seems like they are missing from most if not all crates. In other repositories we symlink to the license files on the root repository directory. Let's do the same thing here.

[stefano-garzarella]

It seems like they are missing from most if not all crates. In other repositories we symlink to the license files on the root repository directory. Let's do the same thing here.

I was going to write the exact same thing ;-)