Correct failed log in ensureWifiConnected()

The timeout is used in the test should be WIFI_CONNECT_TIMEOUT_MS
but log shows WIFI_CONNECT_INTERVAL_MS instead. The debug log is
confusing. Correct it to right variable.

Test: atest CtsNetTestCases
Change-Id: I4cedaa6e03aea6cc02a07bdbea2f0b1e7f5076e1
diff --git a/staticlibs/testutils/devicetests/com/android/testutils/ConnectUtil.kt b/staticlibs/testutils/devicetests/com/android/testutils/ConnectUtil.kt
index fc951d8..7e92af1 100644
--- a/staticlibs/testutils/devicetests/com/android/testutils/ConnectUtil.kt
+++ b/staticlibs/testutils/devicetests/com/android/testutils/ConnectUtil.kt
@@ -75,7 +75,7 @@
                     timeoutMs = WIFI_CONNECT_TIMEOUT_MS)
 
             assertNotNull(cb, "Could not connect to a wifi access point within " +
-                    "$WIFI_CONNECT_INTERVAL_MS ms. Check that the test device has a wifi network " +
+                    "$WIFI_CONNECT_TIMEOUT_MS ms. Check that the test device has a wifi network " +
                     "configured, and that the test access point is functioning properly.")
             return cb.network
         } finally {