Add release note.

tangjj11 · tangjj11 · commit ca76a1f180af · 2025-09-16T21:40:37.000+08:00
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
@@ -225,6 +225,8 @@ CUDA/HIP Language Changes
 CUDA Support
 ^^^^^^^^^^^^
 
+Support calling `consteval` function between different target.
+
 AIX Support
 ^^^^^^^^^^^
 
