Merge "CTS tests for EthernetNetworkSpecifier" am: 700774f34e am: e94dfe7f49 am: 5d63064b2c

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1973286

Change-Id: I0e34e5b5fd7d236e503a99ff71cb8c82da32eb42