[compiler-rt] Recurse into 'utils' directory in CMake build of compiler-rt, enable build of llvm-symbolizer binary (currently for one target only)

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@163138 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed