fix(Examples): Fix copyright in AUDIO_Playback example for MAX32665

[sihyung-maxim]

Description

Did not check the copyright when this example was merged into main. In the process of creating a workflow that checks for the copyright.

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• [ ] PR Title follows correct guidelines.
• [ ] Description of changes and all other relevant information.
• [ ] (Optional) Link any related GitHub issues using a keyword
• [ ] (Optional) Provide info on any relevant functional testing/validation. For API changes or significant features, this is not optional.