[compiler-rt] [profile] Make the binary-id-offset.c test more robust (PR #117647)

[Ulrich Weigand via llvm-commits]

uweigand wrote:

> Hi @uweigand, do you foresee any issues for this test on the s390x side of things?

The build bots are green again s390x, so this looks good.  Thanks!

https://github.com/llvm/llvm-project/pull/117647