esp_hosted_ng: Adapt CONFIG_BT

[Red54]

Description

In some cases BT is not needed, especially when CONFIG_BT is not enabled on Linux.

Related

Testing

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Checklist

Before submitting a Pull Request, please ensure the following:

• 🚨 This PR does not introduce breaking changes.
• All CI checks (GH Actions) pass.
• Documentation is updated as needed.
• Tests are updated or added as necessary.
• Code is well-commented, especially in complex areas.
• Git history is clean — commits are squashed to the minimum necessary.

[CLAassistant]

All committers have signed the CLA.

[mantriyogesh]

@kapilkedawat , ptal..

@Red54 , we sincerely appreciate your efforts and time to add this change. We will push this in some time.