[S] Change in coreboot[master]: cpu/x86/mp_init.c: Use existing code to create cpu struct device

[Felix Held (Code Review)]

Attention is currently required from: Arthur Heymans, Kyösti Mälkki.

Felix Held has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/64341 )

Change subject: cpu/x86/mp_init.c: Use existing code to create cpu struct device
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Patch Set 9: Code-Review+2

(1 comment)

Patchset:

PS9: 
verified that this works on amd/mandolin

out of scope for this patch, but when looking at the patch i wondered if changing
struct device *new = add_cpu_device(cpu_bus, info->cpu->path.apic.apic_id + i, 1);
to
struct device *new = add_cpu_device(cpu_bus, i, 1);
and changing
struct device *bsp = add_cpu_device(cpu_bus, lapicid(), 1);
to
struct device *bsp = add_cpu_device(cpu_bus, 0, 1);
would result in the same behavior with the code being a bit clearer. verified that this works on mandolin, but haven't 100% traced the code, so i'm not certain if that would be correct in all cases