Switch string for cirque lookup. (project-chip#36407)

This is after openthread/ot-br-posix#2574
removed the log line we were looking for.

Co-authored-by: Andrei Litvin <andreilitvin@google.com>

Author: andy31415

src/test_driver/linux-cirque/helper/CHIPTestBase.py

@@ -143,7 +143,7 @@ def reset_thread_devices(self, devices: Union[List[str], str]):
         for device_id in devices:
             # Wait for otbr-agent and CHIP server start
             self.assertTrue(self.wait_for_device_output(
-                device_id, "Thread Border Router started on AIL", 10))
+                device_id, "Thread interface: wpan0", 10))
             self.assertTrue(self.wait_for_device_output(
                 device_id, "[SVR] Server Listening...", 15))
             # Clear default Thread network commissioning data