Pickup fix for when we don't find cpu info from setupapi. (#24753)
### Description
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Some CPUs don't show up in SetupApi info for some reason.
Create default entry if that is the case.
Manually tested by disabling the lookup of GUID_DEVCLASS_PROCESSOR info.
Not sure of a better way to test.
### Motivation and Context
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- If it fixes an open issue, please link to the issue here. -->
Fix crash as other code assumes there will always be CPU device.