make sure the model config loader respects the model_revision too

[winglian]

Description

reported in discord:

ValueError: The model class you are passing has a `config_class` attribute that is not consistent with the config class you passed (model has <class 'transformers_modules.microsoft.phi-2.834565c23f9b28b96ccbeabe614dd906b6db551a.configuration_phi.PhiConfig'> and you passed <class 'transformers_modules.microsoft.phi-2.85d00b03fee509307549d823fdd095473ba5197c.configuration_phi.PhiConfig'>. Fix one of those so they match!

this is due to the config loader pulling main rather than the revision specified

Motivation and Context

How has this been tested?

Screenshots (if appropriate)

Types of changes

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