[clang] [libunwind] [llvm] [WebAssembly] Support for new target `wasm32-linux-muslwali` (PR #162581)

[Derek Schuff via llvm-commits]

dschuff wrote:

Yeah, when there are failures on main you just have to kind of use your judgement and make sure any failures you see aren't related. This looks ready to go, so I'll merge main and give it one more look and then land it.

https://github.com/llvm/llvm-project/pull/162581