[X86][AVX512] add reduce/range/scalef/rndScale
include encoding and intrinsics

Differential Revision: http://reviews.llvm.org/D11222

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242896 91177308-0d34-0410-b5e6-96231b3b80d8
14 files changed