[clang] [lldb] build: adjust LLDB and clang library naming on Windows (PR #185084)

[Saleem Abdulrasool via cfe-commits]

compnerd wrote:

The failures are unrelated to this change. They were failing earlier (https://lab.llvm.org/buildbot/#/builders/211/builds/6871). This is likely from 184656.

https://github.com/llvm/llvm-project/pull/185084