[llvm] [mlir] Shard the public llvm-config.h in multiple files (NFC) (PR #71273)

[Nico Weber via llvm-commits]

nico wrote:

To make progress here, can we please just put the macros added in #71164 into their own header (which can live in mlir/, the only consumer of these values) and not do the rest for now?

https://github.com/llvm/llvm-project/pull/71273