wifi: adapt to multi-type configuration conversion

A multi-type configuration might be converted to 2 single-type
configurations and this results in multiple configurations with
the same SSID.

When the first configuration is found, it could leave the loop as
another one has the same network id.

Bug: 186066324
Test: act.py -c wifi.json -tc WifiManagerTest
Change-Id: I0259df61ca9cab68cee2fbd076ebe2e76baf9978
diff --git a/acts_tests/acts_contrib/test_utils/wifi/wifi_test_utils.py b/acts_tests/acts_contrib/test_utils/wifi/wifi_test_utils.py
index a644a85..670adf0 100755
--- a/acts_tests/acts_contrib/test_utils/wifi/wifi_test_utils.py
+++ b/acts_tests/acts_contrib/test_utils/wifi/wifi_test_utils.py
@@ -777,6 +777,7 @@
                                         SHORT_TIMEOUT)
             except Empty:
                 asserts.fail("Failed to remove network %s." % n)
+            break
 
 
 def wifi_test_device_init(ad):