[M] Change in flashrom[master]: ichspi.c: Read chip ID and use it to populate `flash->chip`

[Subrata Banik (Code Review)]

Attention is currently required from: Edward O'Callaghan, Angel Pons, Nikolai Artemiev.

Subrata Banik has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/69195 )

Change subject: ichspi.c: Read chip ID and use it to populate `flash->chip`
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Patch Set 9:

(1 comment)

Commit Message:

https://review.coreboot.org/c/flashrom/+/69195/comment/c586b5b9_0e0ca9a4 
PS2, Line 7: ichspi.c: Read chip ID and use it to identify chip
> > Maybe we should just print a warning if >1 chip is detected?
> >
> > Subrata, do you have any thoughts on this?
>
> Ideally as per descriptor, there can be 2 SPI flash and we need to drive CS PIN low to initiate the READ JEDEC ID (0x9F) HW seq command for each SPI flash chip to capture the response.

looking at the all latest platform, I don't see the usage of dual chips and mostly I could see the descriptor is set to 0 aka 1 chip.