Merge "Immediately create native networks when NetworkAgents register." am: 18cdec34dd am: c23446db3e am: b0d702634d am: 74b5d4cb8c

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2162425

Change-Id: If0f7558f7fa4fc998947b6ec0f399c4d364306ac
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>