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

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Tim Crawford, Sean Rhodes, SRIDHAR SIRICILLA, Furquan Shaikh, Paul Menzel, Rizwan Qureshi, Subrata Banik, Sridhar Siricilla, Arthur Heymans, Evgeny Zinoviev, Patrick Rudolph.
Tim Wawrzynczak 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 76: Code-Review+1

(3 comments)

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

https://review.coreboot.org/c/coreboot/+/52800/comment/5d4cf745_2771b34a 
PS72, Line 949: /* Avoid boot loops by only trying a state change 3 times */
              : 		if (me_state_counter < 3
nit You can avoid the comment with something like

`#define MAX_ME_STATE_CHANGE_ATTEMPTS       3`
or similar

https://review.coreboot.org/c/coreboot/+/52800/comment/c25c7e81_797a56d7 
PS72, Line 956: ME: Reset limit reached.
suggestion:
`ERROR: Failed to change ME state in %d attempts!\n", MAX_ME_STATE_CHANGE_ATTEMPTS);`

https://review.coreboot.org/c/coreboot/+/52800/comment/b472cee7_a013bdd5 
PS72, Line 956: DEBUG
should this be `BIOS_ERR` ?