[X86][AVX512BW] Fixed check prefix copy+paste typo in avx512bw-intrinsics.ll

Prefix was for AVX512F instead of AVX512BW 

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@333560 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed