[BUG] Request body property's type for Virtual Machine Scale Sets - Update is mismatched or fields are missing

### API Spec link

https://github.com/Azure/azure-rest-api-specs/blob/260ed6a52537921f53a18ffaf4020e3b4d510367/specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2024-07-01/virtualMachineScaleSet.json#L5394-L5454

### API Spec version

2024-11-01

### Describe the bug

For `Virtual Machine Scale Sets` update endpoint, the `virtualMachineProfile` property is described as type `VirtualMachineScaleSetUpdateVMProfile`. But in reality, users can send non VirtualMachineScaleSetUpdateVMProfile fields to the API, such as `applicationProfile`. Looks like the type for `virtualMachineProfile` should be `VirtualMachineScaleSetVMProfile`

### Expected behavior

If the virtualMachineProfile type is `VirtualMachineScaleSetUpdateVMProfile`, it shouldn't accept non specified fields and should fail.

### Actual behavior

The PATCH request with `applicationProfile` fields data is updated successfully

### Reproduction Steps

Request body:
```
{
"properties": {
"virtualMachineProfile": {
"applicationProfile": {
"galleryApplications": [{
"configurationReference": "https://accteststrlucia.blob.core.windows.net/ll/script2",
"order": 1,
"packageReferenceId": "/subscriptions/***/resourceGroups/acctestRG-vmss-lucia/providers/Microsoft.Compute/galleries/acctestsig/applications/acctest-app/versions/0.0.1",
"tags": "app"
}]
}
}
}
}
```

API Endpoint:
`https://management.azure.com/subscriptions/***/resourceGroups/acctestRG-vmss-lucia/providers/Microsoft.Compute/virtualMachineScaleSets/acctestvmss?api-version=2024-11-01`

Method: `PATCH`

### Environment

_No response_

Open specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2024-07-01/virtualMachineScaleSet.json around lines 5394-5454 and compare the virtualMachineProfile schema with the reported 2024-11-01 PATCH request. Determine whether applicationProfile belongs in the accepted update shape, then update the specification so the documented type matches the API behavior and verify the schema covers the reported request.

Written by the indexing model from the issue text.