AMD RDRAND

[Germano Massullo]

I would like to inform Wireguard developers about the following.
it seems that this [1] old AMD RDRAND problem is still present:
RDRAND on AMD Ryzen 9 5900X is flakey -
https://github.com/systemd/systemd/issues/18184

I own 2x Ryzen 3600, feel free to write me in case you would like to run
some tests

[1]:
https://arstechnica.com/gadgets/2019/10/how-a-months-old-amd-microcode-bug-destroyed-my-weekend/