[M] Change in coreboot[master]: tests: Support linking with system libc

[Jakub Czapiga (Code Review)]

Jakub Czapiga has uploaded a new patch set (#2). ( https://review.coreboot.org/c/coreboot/+/70108 )

Change subject: tests: Support linking with system libc
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tests: Support linking with system libc

This patch allows for linking selected files with system libc. This
allows for creating libraries interacting with filesystem, standard I/O
and other parts of system. Until now it was only possible using CMocka
proxy functions or functions not masked by code under test.

Signed-off-by: Jakub Czapiga 
Change-Id: I652362ba61a25e974d706357fc36479ccee763e4
---
M tests/Makefile.common
M tests/Makefile.inc
2 files changed, 48 insertions(+), 14 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/08/70108/2