Change in coreboot[master]: util/chromeos: Verify sha1sums of downloaded recovery images

[Arthur Heymans (Code Review)]

Attention is currently required from: Matt DeVillier, Paul Menzel, Leah Rowe.
Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/51168 )

Change subject: util/chromeos: Verify sha1sums of downloaded recovery images
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Patch Set 1:

(3 comments)

File util/chromeos/crosfirmware.sh:

https://review.coreboot.org/c/coreboot/+/51168/comment/6a16f2f0_cdcf0b28 
PS1, Line 51: sha1_list="$(grep sha1 ${_cfgfile} | sed 's/sha1=//g')"
Why check against all sha1sums and not just the one for the board you need?

https://review.coreboot.org/c/coreboot/+/51168/comment/658b27a3_4fd8e32c 
PS1, Line 138: 
Please remove.

https://review.coreboot.org/c/coreboot/+/51168/comment/3c408911_ee6fbd54 
PS1, Line 168: 
Please remove.