[M] Change in flashrom[master]: board_enable.c: Add ME unlock function for Clevo laptops

[Michael Niewöhner (Code Review)]

Attention is currently required from: Nico Huber, Michał Żygowski, Paul Menzel, Sridhar Siricilla, Angel Pons, Arthur Heymans.

Michael Niewöhner has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/56023 )

Change subject: board_enable.c: Add ME unlock function for Clevo laptops
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Patch Set 15:

(1 comment)

File flashrom.8.tmpl:

https://review.coreboot.org/c/flashrom/+/56023/comment/454455f3_cf99c46f 
PS15, Line 650: .sp
              : Parameter
              : .B unlock_intel_me
              : can be used to unlock full flash udpates on Clevo/Tuxedo laptops. The flashrom
              : will request the Embedded Controller to assert Flash Descriptor Security
              : Override pin and unlock all flash regions. The pin is being asserted after
              : power off and power on cycle. ME remains unlocked until the next power off
              : power on cycle, but the pin is being deasserted on next reset. Syntax is
              : .sp
              : .B "  flashrom -p internal:unlock_intel_me=yes"
              : .SS
> Unfortunately, yes

Actually, it's even worse. When pressing Fn + M during powering-on, ME is unlocked through the same mechanism