fix issue with cuda graph and m4

[shifangx]

What does this PR do ?

fix this issue #3135
Global pg groups, such as _TENSOR_MODEL_PARALLEL_GROUP , in parallel_state.py will be deprecated after M4.
So we need pass pg_collection while init TECudaGraphHelper, and use pg group in pg_collection later.

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[yashaswikarnati]

nit; good to have imports top of file

[yashaswikarnati]

what is this self.config? looks like p2p communicator needs ModelParallelConfig, not TransformerConfig