[llvm] Build win release packages with LLDB_ENABLE_LIBXML2 (PR #170513)

[Hans Wennborg via llvm-commits]

zmodem wrote:

> It might be nice to enable this a bit further as well - llvm-rc also depends on libxml2 for manifest handling.

That should already be enabled:

https://github.com/llvm/llvm-project/blob/e66e8aac6e4c0cc3874cabad736233440b0ffb1e/llvm/utils/release/build_llvm_release.bat#L164

https://github.com/llvm/llvm-project/pull/170513