commit f2be219278f712021e89b9474aedac31dc28fb6d
author Pavel Maltsev <pavelm@google.com> Wed May 09 14:49:33 2018 -0700
committer Erik Kline <ek@google.com> Wed May 16 11:36:28 2018 +0900
tree b0c34c64cd047643c377fb3c66c39b4fb7abfd8a
parent 813d57c51c82cc7a3a1f51c6e2427f623f3a8689

Fix overriding ip configurtion with default one

EthernetConfigStore should return 'null' for default interface if the
default interface hasn't been configured otherwise it would be hard to
distinguish not-configured vs configured with default values.

Bug: 79415136
Test: verified w/o .xml overlay Ethernet continues to work
Test: verified that ip config from overlay is not getting overriden
Merged-In: I82933a83a7d13903bbce9a85d6e8dae1a492bf24
Merged-In: I98133ad41229b93f51ea3976d311f9896456a56c
Change-Id: I4eb914923f3664b12b6af0ae05f45b60c5312b02
(cherry picked from commit 27d7591acfc99be7909a0007b2ae8a04152c167b)