The Clang-AIX-Wyvern-Dev buildbot is currently failing at the set
directory permission due to a bad symlink caused by this
[commit](a54f31fabd).
This change is creating the additional symlink `readtapi ->
llvm-readtapi` which causes it to appear in
`/buildbot_worker/official-worker/clang-aix-dev/installdir`.
After some investigation, it looks like `readtapi` is the only tool that
is getting symlinked that is not guarded by the
`LLVM_INSTALL_BINUTILS_SYMLINKS` macro. For example:
1. `llvm/tools/llvm-objcopy/CMakeLists.txt`
```
if(LLVM_INSTALL_BINUTILS_SYMLINKS)
add_llvm_tool_symlink(objcopy llvm-objcopy)
endif()
```
2. `llvm/tools/llvm-dwp/CMakeLists.txt`
```
if(LLVM_INSTALL_BINUTILS_SYMLINKS)
add_llvm_tool_symlink(dwp llvm-dwp)
endif()
```
c3356ac3b9