[flashrom-gerrit] Change in flashrom[1.0.x]: tree: Make internal variables static

[Nico Huber (Code Review)]

Attention is currently required from: Jacob Garber.
Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/62615 )

Change subject: tree: Make internal variables static
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Patch Set 1: Code-Review-1

(1 comment)

Patchset:

PS1: 
Given that the parent passed Jenkins, it seems we don't need this
commit on the 1.0.x branch. I'll have a second look if it fixes
anything. Until then, sorry for the noise.