Fix detection of GFNI,VAES, and VPCLMULQDQ

[Wunkolo]

Previously these CPUID flags were only tested when the host supported
AVX512.
Fixes #153 and fixes detection of GFNI and VAES:

% sde64 -adl -- ./test_util64
64bit
vendor intel
- mmx mmx2 cmov sse sse2 sse3 ssse3 sse41 sse42 popcnt aesni rdtscp osxsave(xgetvb) pclmulqdq avx fma avx2 bmi1 bmi2 lzcnt prefetchw enh_rep rdrand adx rdseed smap sha f16c movbe avx_vnni waitpkg clflushopt cldemote movdiri movdir64b
+ mmx mmx2 cmov sse sse2 sse3 ssse3 sse41 sse42 popcnt aesni rdtscp osxsave(xgetvb) pclmulqdq avx fma avx2 bmi1 bmi2 lzcnt prefetchw enh_rep rdrand adx rdseed smap sha f16c movbe gfni vaes vpclmulqdq avx_vnni waitpkg clflushopt cldemote movdiri movdir64b
popcnt ok
family=6, model=A, stepping=0, extFamily=0, extModel=9
display:family=6, model=9A
cache level=0 data cache size=32768 cores sharing data cache=1
cache level=1 data cache size=1048576 cores sharing data cache=1
cache level=2 data cache size=14417920 cores sharing data cache=1
SmtLevel =2
CoreLevel=1

[herumi]

Thanks for the nice patch. I've merged it.