[clang][Docs] Added release note for D142609

Author: xgupta

clang/docs/ReleaseNotes.rst

@@ -441,6 +441,9 @@ Improvements to Clang's diagnostics
 - ``-Wformat`` will no longer suggest a no-op fix-it for fixing scoped enum format
   warnings. Instead, it will suggest casting the enum object to the type specified
   in the format string.
+- Clang now emits ``-Wconstant-logical-operand`` warning even when constant logical
+  operand is on left side.
+  (`#37919 <https://github.com/llvm/llvm-project/issues/37919>`_)
 
 Bug Fixes in This Version
 -------------------------