Change in coreboot[master]: tests: Add lib/stack-test test case

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Attention is currently required from: Martin Roth, Jan Dabros.
Hello build bot (Jenkins), Patrick Georgi, Martin Roth, Paul Fagerburg, Jan Dabros,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/50305

to look at the new patch set (#4).

Change subject: tests: Add lib/stack-test test case
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tests: Add lib/stack-test test case

Signed-off-by: Jakub Czapiga 
Change-Id: Icf0cceac290618a50ecc4e65f1f9551dbf31bd32
---
M tests/lib/Makefile.inc
A tests/lib/stack-test.c
2 files changed, 138 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/05/50305/4