add missing dependency on Target lib for tools

This was exposed by r238842 (which was reverted by r238900)
when doing a CMake build with -DBUILD_SHARED_LIBS=ON.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238953 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed