[X86] Add additional CPUs and features to Host.cpp and X86TargetParser.def to...

[X86] Add additional CPUs and features to Host.cpp and X86TargetParser.def to match compiler-rt and enable __builtin_cpu_supports/__builtin_cpu_is support in clang

Summary: This matches LLVM to D53461 for compiler-rt.

Reviewers: echristo, erichkeane

Reviewed By: echristo

Subscribers: dberris, llvm-commits

Differential Revision: https://reviews.llvm.org/D53462

llvm-svn: 344831