auto-t: fix testPreauth-roam

Changed to wait for DeviceState instead of network object as well
as moved hwsim rules ahead of the IWD initializer to avoid IWD
scanning before the rules are fully in place.

autotests/testPreauth-roam/connection_test.py

@@ -44,14 +44,14 @@ class Test(unittest.TestCase):
         bss_hostapd[1].set_neighbor(bss_radio[0].addresses[0], 'TestPreauth',
                 bss0_nr)
 
-        wd = IWD()
-
-        device = wd.list_devices(1)[0]
-
         # Check that iwd selects BSS 0 first
         rule0.signal = -2500
         rule1.signal = -3500
 
+        wd = IWD()
+
+        device = wd.list_devices(1)[0]
+
         condition = 'not obj.scanning'
         wd.wait_for_object_condition(device, condition)
 
@@ -76,8 +76,8 @@ class Test(unittest.TestCase):
 
         ordered_network.network_object.connect()
 
-        condition = 'obj.connected'
-        wd.wait_for_object_condition(ordered_network.network_object, condition)
+        condition = 'obj.state == DeviceState.connected'
+        wd.wait_for_object_condition(device, condition)
 
         self.assertTrue(bss_hostapd[0].list_sta())
         self.assertFalse(bss_hostapd[1].list_sta())