auto-t: make testSAQuery more reliable

First, looking for DeviceState.connected gives a much better indication
if we are actually connected vs the connected property on the network
object. Second, its good practice to also check that hostapd sees that
the station is connected.

autotests/testSAQuery/connection_test.py

@@ -13,7 +13,7 @@ from hostapd import HostapdCLI, hostapd_map
 class Test(unittest.TestCase):
 
     def test_connection_success(self):
-        hostapd = HostapdCLI(list(hostapd_map.values())[0])
+        hostapd = HostapdCLI(config='ssidCCMP.conf')
 
         wd = IWD()
 
@@ -53,8 +53,10 @@ class Test(unittest.TestCase):
 
         # IWD should now try and re-connect to the AP
 
-        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)
+
+        hostapd.wait_for_event('AP-STA-CONNECTED')
 
         device.disconnect()