Update WifiInfo rssi when L2 connected

Currently we only update WifiInfo rssi from the
onNetworkCapabilitiesChanged, but we should be updating before this via
NETWORK_STATE_CHANGED too. Otherwise, a connecting WifiEntry will show no
signal icon if there are no scan results yet.

Bug: 297220618
Test: atest WifiPickerTrackerTest
Change-Id: If3d3e70579907e29acca473c8ed618789ff5f9b5
2 files changed