hash: fix Toeplitz hash implementation

hash: fix Toeplitz hash implementation

This patch fixes various issues:
- replace _mm512_set_epi8 with _mm512_set_epi32 due to the lack
  of support by some compilers (at least, gcc 8),
- check if AVX512F is supported along with GFNI, this is done if the code
  is built on a platform that supports GFNI, but does not support AVX512,
- fix compilation problems on 32bit arch due to lack of support for
  _mm_extract_epi64() by implementing XOR folding with
  _mm_extract_epi32() on 32-bit arch,

Fixes: 4fd8c4cb0de1 ("hash: add new Toeplitz hash implementation")
Signed-off-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Acked-by: Lance Richardson <lance.richardson@broadcom.com>
Acked-by: Kai Ji <kai.ji@intel.com>