llvm/test/CodeGen/X86: Unmark them out of XFAIL:cygming, in atomic{32|64}.ll and handle-move.ll, corresponding to r178549.

This reverts r176808, r176798, and r177914.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178583 91177308-0d34-0410-b5e6-96231b3b80d8