Merge changes Icf32cb46,I43434c80,I59dc46dc,I7df3f14b,I50f2c0e9

* changes:
  Don't process dup unwanted() when unregistering NetworkAgent
  Add/remove internal addresses from IpSecTunnelInterface
  Populate legacy type in VCN NetworkAgentConfig
  Add TRANSPORT_CELLULAR to VCN filter
  Allow soft-start and opportunistic safe mode