tests/subsys/openthread/app.overlay - third_party/github/zephyrproject-rtos/zephyr - Git at Google

 / {
 	chosen {
 		zephyr,ieee802154 = &ieee802154;
 	};

 	ieee802154: ieee802154 {
 		compatible = "vnd,ieee802154";
 	};
 };
	/ {
	chosen {
	zephyr,ieee802154 = &ieee802154;
	};

	ieee802154: ieee802154 {
	compatible = "vnd,ieee802154";
	};
	};