[coreboot-gerrit] Change in coreboot[master]: include: Implement abs()

[Patrick Rudolph (Code Review)]

Patrick Rudolph has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/32501 )

Change subject: include: Implement abs()
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Patch Set 3:
> Patch Set 3:
>
> There is an abs() in commonlib/helpers.h, please base this off that.

I tried to use ABS instead of abs(), but it doesn't work as the 3rdparty library depends on the C89 function signature and the casts implicitly done usingthis function.