Segfault for unkown CPUs

[termi-official]

When likwid fails to identify the CPU it returns an only partially initialized cpu info stuct. However during topology resolution (here

LIKWID.jl/src/topology.jl

Lines 79 to 80 in 5d2cd59

	unsafe_string(ci.name),
	unsafe_string(ci.short_name),

) it is assumed that the strings for name and short_name are initialized.

Reproducible on master for likwid and LIKWID.jl, as well as for both latest releases.