Add WifiPickerTracker.getActiveWifiEntries()

Add getActiveWifiEntries() to return all connected/connecting
WifiEntries, including the primary network and any secondary OEM
networks. For backwards compatibility, getConnectedWifiEntry() will
continue to return the connected/connecting primary network.

Bug: 233925075
Test: atest WifiTrackerLibTests

Change-Id: Ied827b000a70db15011023df4aaa1836d3393499
4 files changed