message: [MLIR][KernelGen] Register MLIR context flags in `tf_to_kernel`
  This change adds support for MLIR context flags like `--mlir-disable-threading`
  to the `tf_to_kernel` tool.
diff: @@ -173,6 +173,7 @@ int main(int argc, char** argv) {
  llvm::InitializeNativeTarget();
  llvm::InitializeNativeTargetAsmPrinter();
  mlir::registerPassManagerCLOptions();
  + mlir::registerMLIRContextCLOptions();
  llvm::cl::ParseCommandLineOptions(argc, argv, "TF op kernel generator\n");
  auto status = tensorflow::kernel_gen::Run(
  