[llvm] Add release note for parallel module creation in LLDB (PR #116857)

[Jonas Devlieghere via llvm-commits]

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@@ -355,6 +355,8 @@ Changes to LLDB
 
 * A new setting `target.launch-working-dir` can be used to set a persistent cwd that is used by default by `process launch` and `run`.
 
+* LLDB now creates modules in parallel, resulting in an average 2x speedup when launching and attaching.
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JDevlieghere wrote:

WDYT of the new wording?

https://github.com/llvm/llvm-project/pull/116857