[clang] [clang] Fix behavior of `__is_trivially_relocatable(volatile int)` (PR #77092)

[Amirreza Ashouri via cfe-commits]

AMP999 wrote:

> We probably need a release note for that, don't we? LGTM otherwise

Sure, I'll add a release note to Clang.

https://github.com/llvm/llvm-project/pull/77092