Report SkylakeX as Haswell if compiler does not support AVX512
Report SkylakeX as Haswell if compiler does not support AVX512

... or make was invoked with NO_AVX512=1
xianyi/OpenBLAS,xianyi/OpenBLAS,xianyi/OpenBLAS,xianyi/OpenBLAS,xianyi/OpenBLAS,xianyi/OpenBLAS,xianyi/OpenBLAS,xianyi/OpenBLAS