[Clang][NFC] Move FatbinFileName instead of copy (#143827)

Static analysis flagged FatbinFileName since we can move it instead of
copying it.

Author: shafik

clang/lib/Interpreter/DeviceOffload.cpp

@@ -151,7 +151,7 @@ llvm::Error IncrementalCUDADeviceParser::GenerateFatbinary() {
                    llvm::StringRef(FatbinContent.data(), FatbinContent.size()),
                    "", false));
 
-  CodeGenOpts.CudaGpuBinaryFileName = FatbinFileName;
+  CodeGenOpts.CudaGpuBinaryFileName = std::move(FatbinFileName);
 
   FatbinContent.clear();