Add owner to stable interfaces in /staging

This interface is in staging because it's not ready to become a fully
supported HAL interface. Without "owner", we expect it to be frozen
after API freeze.

Adding owner field to enable API Freeze tests in continuous integration.

Test: none
Bug: 331696132
Change-Id: If56371438f61b771d0024d3091bde19b5d1b3e8c