onnxruntime

[MIGraphX EP] Add additional operators  (#22446)

* Add in missing operators for llama run

* Add simplified layer norm ops

### Description
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Adding additional supported operators into MIGraphX EP that are
supported in MIGraphX


### Motivation and Context
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- If it fixes an open issue, please link to the issue here. -->

Allows for more models to be run through MIGraphX EP