[L] Change in coreboot[main]: mb/dell/optiplex_9020: Implement late HWM initialization

[Máté Kukri (Code Review)]

Attention is currently required from: Angel Pons, Varshit Pandya.

Máté Kukri has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/81529?usp=email )

Change subject: mb/dell/optiplex_9020: Implement late HWM initialization
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Patch Set 5:

(1 comment)

File src/mainboard/dell/optiplex_9020/mainboard.c:

https://review.coreboot.org/c/coreboot/+/81529/comment/2d8b2dac_1a8ed024 :
PS5, Line 371: 	if (CONFIG_MAX_CPUS > 2) {
> Ack. There are CPUs with 2 cores and 2 threads, but they're low-end.

Mine is 4 core 4 thread, and that MSR returns 7 on mine, so I wonder what value would it be on the 2 core 2 thread ones. I have one in a box somewhere I guess I might dig it up later