Merge changes Ie63a3583,I1354ec53,I3806750a,I48d0b0f9,I4da56735 into main

* changes:
  Move isAtLeastB to dependencies
  Pass nullable values to parse functions
  Rename EthernetTrackerConfig to EthernetConfigParser
  Do not support configuring test interfaces in config.xml
  Prevent mixing mutable and immutable lists