[libvirt] [PATCH v2 2/2] test_driver: implement virDomainGetCPUStats

[Erik Skultety]

>
> > the "+ i" also seems unnecessary.
>
> I just added it in order for different CPUs to return different values.
> +1, +2 etc. are trivial quantities so the results still make sense imo

Well, I didn't see a use case in that, but someone may sort the returned stats
by the most utilized CPU, so it kinda makes sense, I'll leave it in then.

Erik