[llvm] [llvm-config] Make llvm-config --system-libs obey LLVM_USE_STATIC_ZSTD. (PR #93754)

[Fangrui Song via llvm-commits]

MaskRay wrote:

> Rebased and updated the commit message per @MaskRay's request.

Thx.

GitHub "Squash and merge" populates the default commit message with the content of the first comment.
So you just need to edit the description. The commit messages are ignored.


https://github.com/llvm/llvm-project/pull/93754