Change in coreboot[master]: soc/intel: Allow enable/disable ME via CMOS

[Sean Rhodes (Code Review)]

Attention is currently required from: Tim Crawford, SRIDHAR SIRICILLA, Furquan Shaikh, Paul Menzel, Rizwan Qureshi, Angel Pons, Subrata Banik, Sridhar Siricilla, Arthur Heymans, Evgeny Zinoviev, Patrick Rudolph, Felix Held.
Sean Rhodes has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/52800 )

Change subject: soc/intel: Allow enable/disable ME via CMOS
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Patch Set 77:

(3 comments)

Patchset:

PS77:
> did you test what happens when running an ME firmware image that has been processed by me_cleaner fo […]

Just tried and it fails to get a response. It could just be me, I haven't had much luck with me_cleaner.

File src/soc/intel/common/block/cse/cse.c:

https://review.coreboot.org/c/coreboot/+/52800/comment/0be31c8b_e0d74b4a 
PS77, Line 1003: 			printk(BIOS_ERR, "Error: Failed to change ME state in %u attempts!\n",
> my concern was if there's any way out of the case where me_state_counter >= ME_DISABLE_ATTEMPTS when […]

Done

https://review.coreboot.org/c/coreboot/+/52800/comment/cc3e5652_7494d406 
PS77, Line 1009: 		do_global_reset();
> read a bit more of the code around this and yes, this shouldn't be printed as an error, since it's a […]

Done