Change in flashrom[master]: ichspi: Add Alder Lake support

[Angel Pons (Code Review)]

Attention is currently required from: Nico Huber, Rizwan Qureshi, Edward O'Callaghan.
Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/62251 )

Change subject: ichspi: Add Alder Lake support
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Patch Set 12: Code-Review+1

(1 comment)

Commit Message:

https://review.coreboot.org/c/flashrom/+/62251/comment/2e13eff3_09e0111a 
PS12, Line 12: TEST=```localhost ~ # flashrom --flash-name
Any other tests, e.g. reading? If the ME region is locked, you can still read the other regions. A good test would be:

flashrom -p internal --ifd -i fd -i bios -r filename.rom

This makes use of flashrom's IFD parsing code to decide which parts of the flash chip should be read. This tests the changes to `guess_ich_chipset_from_content()`, please check the flashrom log to verify the correct chipset is detected.