[cocoon] Update the net interface we are getting the ip from. (#474)
[cocoon] Update the net interface we are getting the ip from. (#474)

With the linux host migration to new hardware and Debian, ip addresses
are not reported anymore. This is because the network interface name
changed and needs to be updated.
flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon