OpenBSD UBsan support final missing bits

Summary:
One forgotten file change + reordering one header due to clang-format

Patch by David CARLIER

Reviewers: vitalybuka, vsk

Subscribers: kubamracek, fedor.sergeev, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D44556

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@327758 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed