Fix locative device update (#24744)

* Add a test for two devices

* Fix locative updating all devices

* Add a guard clause that checks if correct device is passed.

homeassistant/components/locative/device_tracker.py

@@ -85,6 +85,8 @@ class LocativeEntity(DeviceTrackerEntity):
     @callback
     def _async_receive_data(self, device, location, location_name):
         """Update device data."""
+        if device != self._name:
+            return
         self._location_name = location_name
         self._location = location
         self.async_write_ha_state()