[Bug target/118813] [14/15 regression] avx512bwintrin.h is not `-Wsystem-headers -Wundef` clean since r14-4490-g03a8504815d539

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118813

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #18 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Fixed. and tested `-Wsystem-headers -Wundef -std=c23` with a simple:
#include <immintrin.h>

There is some libstdc++ issues with `-Wsystem-headers -Wundef` but the issue
here is fixed.