Sendcallback when setting eth interface up

Fix so callbacks are sent when changing the interface link state for an
ethernet interface from down -> up.

Bug: 235605892
Test: atest FrameworksNetTests
:com.android.server.ethernet.EthernetNetworkFactoryTest

Change-Id: If13254d4882aa2f0021f6443f31ef173b3867727
(cherry picked from commit a199735a88ae703c5d24cbad1540a1694811466a)
Merged-In: If13254d4882aa2f0021f6443f31ef173b3867727
2 files changed