[M] Change in coreboot[master]: mb/google/rex: Update Rex Flash Layout to fit WP_RO within 4MB

[Subrata Banik (Code Review)]

Attention is currently required from: Tarun Tuli, Paul Menzel, Kapil Porwal.

Subrata Banik has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/74229 )

Change subject: mb/google/rex: Update Rex Flash Layout to fit WP_RO within 4MB
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Patch Set 3:

(1 comment)

File src/mainboard/google/rex/chromeos.fmd:

https://review.coreboot.org/c/coreboot/+/74229/comment/262757e3_fd0285bc 
PS1, Line 7: 7M
> > I’d make these non-functional changes a separate commit.
>
> I don't agree with this. This CL attempts to make WP_RO to 4MB hence, all relevant changes are here.

Additionally, i don't know what u mean by non-functional change. if i have to cut 4MB from WP_RO, then i have to give those to some other region to fit within 4MB