[Bug target/76731] [AVX512] _mm512_i32gather_epi32 and other scatter/gather routines have incorrect signature

[wenzel@mitsuba-renderer.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76731

--- Comment #11 from Wenzel Jakob <wenzel@mitsuba-renderer.org> ---
Searching through the intrinsics guide (e.g.
https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=gather_ps),
I see "void *" for all gather scatter intrinsics and "const void *" for all
gather intrinsics consistently applied.

This is in contrast to the load intrinsics, where there are some
inconsistencies between argument conventions (e.g. _mm512_load_ps vs
_mm256_load_ps)