[X86] Block i32/i64 for 'k' and 'Yk' in getRegForInlineAsmConstraint without avx512bw.

32 and 64 bit k-registers require avx512bw. If we don't block this properly, it leads to a crash.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358436 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed