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 58cb06b6c84b186ab37acb609a0900b077bf49fc)
1 file changed