Change in coreboot[master]: src/cpu/x86/smm: move console init to thread safe section

[Rocky Phagura (Code Review)]

Attention is currently required from: Nico Huber, Jonathan Zhang, David Hendricks, Rocky Phagura, Angel Pons, Arthur Heymans.
Rocky Phagura has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/52518 )

Change subject: src/cpu/x86/smm: move console init to thread safe section
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Patch Set 1:

(1 comment)

File src/cpu/x86/smm/smm_module_handler.c:

https://review.coreboot.org/c/coreboot/+/52518/comment/5f9bfb52_4f521d65 
PS1, Line 149: 	if (cpu > CONFIG_MAX_CPUS) {
> This should never happen under normal circumstances. […]

This can happen and it does happen if someone drops in a SOC with more CPUs than originally configured for. Coreboot should not hang (looping on status bits, etc) if this happens. I'm not sure how this will hide the problem. In fact, it actually helps see the debug message on the console.