[M] Change in coreboot[main]: commonlib: Add GCD function

[Yidi Lin (Code Review)]

Attention is currently required from: Arthur Heymans, Julius Werner, Paul Menzel, Yidi Lin.

Hello Arthur Heymans, Julius Werner, Yu-Ping Wu, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/78798?usp=email

to look at the new patch set (#5).

The following approvals got outdated and were removed:
Verified+1 by build bot (Jenkins)

Change subject: commonlib: Add GCD function
......................................................................

commonlib: Add GCD function

Implement a simple GCD function.

BUG=b:307790895
TEST=emerge-geralt coreboot
TEST=make tests/commonlib/bsd/gcd-test

Change-Id: I21819cda4299b3809b8ca7a95cbdc6a87e4b3481
Signed-off-by: Yidi Lin 
---
M src/commonlib/Makefile.inc
A src/commonlib/bsd/gcd.c
A src/commonlib/bsd/include/commonlib/bsd/gcd.h
M tests/commonlib/bsd/Makefile.inc
A tests/commonlib/bsd/gcd-test.c
5 files changed, 67 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/98/78798/5