[OpenMP] Make default OpenMP library (the one selected with just -fopenmp)
configurable in the CMake build. There shouldn't be any change in default
behavior.

Derived from a patch by Daniel Jasper!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237850 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed