Add DHCP to the list of allowed open ports for Tethering

Bug: 229948900
Test: m -j cts
      cts-tradefed
      run cts -m CtsAppSecurityHostTestCases -t android.appsecurity.cts.ListeningPortsTest#testNoRemotelyAccessibleListeningUdpPorts
Change-Id: I2182248612716170ff1b314a418df5ffe2dc0117
1 file changed