CtsNetTests: Add a test for b/25624963

Ensure that password is not output in toString() for an enterprise
credential.

Bug: 25624963
Test: Run this CTS test: run cts --module CtsNetTestCases --test android.net.wifi.cts.WifiEnterpriseConfigTest#testEnterpriseConfigDoesNotPrintPassword
Change-Id: I84a62ae5d37aa7d397203f41362dadb8ceba1e62
1 file changed
tree: 194cc9ecead81d8f8134c170397848c5b833cfb0
  1. tests/