include/llvm/Config/config.h.cmake: Reorder to follow config.h.in, and import stuff from llvm-config.h.cmake and clang/config.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137424 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed