Add timeout default in NeutronBackend (pytorch#21293)

Differential Revision: D113453148

Pull Request resolved: pytorch#21293

Author: JakeStevens

backends/nxp/runtime/NeutronBackend.cpp

@@ -290,6 +290,10 @@ class NeutronBackend final : public PyTorchBackendInterface {
 
     auto* cfg = allocator->allocateInstance<NeutronExecutorchConfig>();
 
+    // allocateInstance returns raw, uninitialized memory (no constructor runs),
+    // so set the driver-config timeout explicitly.
+    cfg->mcfg.timeoutSeconds = 60;
+
     // The following data is read from the "processed" data blob.
     //    cfg->numInputs
     //    cfg->numoutputs
@@ -673,4 +677,4 @@ static auto registered = register_backend(backend_id);
 } // namespace
 } // namespace neutron
 } // namespace executor
-} // namespace torch
+} // namespace torch