[AIX][r] Do not call AddFilePathLibArgs with -r

[francii]

Summary

We do not want to add file path lib args when -r is specified.

clang/lib/Driver/ToolChains/AIX.cpp

if (Args.hasArg(options::OPT_shared) && !hasExportListLinkerOpts(CmdArgs)) {
     ExpCommand->setRedirectFiles(
         {std::nullopt, std::string(ExportList), std::nullopt});
     C.addCommand(std::move(ExpCommand));
     CmdArgs.push_back(Args.MakeArgString(llvm::Twine("-bE:") + ExportList));
   }
 
   // Add directory to library search path.
   Args.AddAllArgs(CmdArgs, options::OPT_L);
-  ToolChain.AddFilePathLibArgs(Args, CmdArgs);
   if (!Args.hasArg(options::OPT_r)) {
+    ToolChain.AddFilePathLibArgs(Args, CmdArgs);
     ToolChain.addProfileRTLibs(Args, CmdArgs);
 
     if (getToolChain().ShouldLinkCXXStdlib(Args))
       getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
 
     if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
       AddRunTimeLibs(ToolChain, D, CmdArgs, Args);