Specified scale type 'Standard' of account deployment is not supported by GPT4 or GPT35TURBO

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### This issue is for a: (mark with an `x`)
```
- [ X] bug report -> please search issues before submitting
- [ ] feature request
- [ ] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)
```

### Minimal steps to reproduce
> When deploying [End_to_end_Solutions](https://github.com/Azure-Samples/openai/tree/main/End_to_end_Solutions)
**AOAISearchDemo** application, I ran with the below issue when I ran azd up command after following the steps of starting from the scratch -"https://github.com/Azure-Samples/openai/tree/main/End_to_end_Solutions/AOAISearchDemo#starting-from-scratch"

**The template deployment 'openai' is not valid according to the validation procedure.
The specified scale type 'Standard' of account deployment is not supported by the model**

I tried with both gpt35turbo and gpt4. Please let me how to fix this deployment error

Every resource except openai got deployed successfully
### Any log messages given by the failure
>

### Expected/desired behavior
> The application should get deployed successfully on Azure infrastructure. Once the app is up, I should be able to query the application.

### OS and Version?
> Windows 7, 8 or 10. Linux (which distribution). macOS (Yosemite? El Capitan? Sierra?)
Window10

### Versions
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### Mention any other details that might be useful

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