Add support for immutable list (pytorch#3811)

Summary:
Pull Request resolved: pytorch#3811

Added the support for the immutable list
- The changes is in the PyTorch fx graph building framework.
- To build a GPU/Vulkan graph, previously there is no support for the immutable list

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Reviewed By: copyrightly, derekxu

Differential Revision: D58028346

fbshipit-source-id: c96731bb6f9e4c00d1afbf57def4b7fd93a20f59

backends/vulkan/serialization/vulkan_graph_builder.py

@@ -248,6 +248,9 @@ def get_or_create_value_for(self, arg: _Argument):
             return self.create_scalar_list_value(arg)
         elif isinstance(arg, list) and isinstance(arg[0], Node):
             return self.create_value_list_value(arg)
+        elif isinstance(arg, torch.fx.immutable_collections.immutable_list):
+            # pyre-ignore[6]
+            return self.create_value_list_value(arg)
         elif isinstance(arg, str):
             return self.create_string_value(arg)
         else: