Automatically enable ADB Wifi on trusted networks

This change enables ADB over Wi-Fi automatically when the device
connects to a previously authorized, trusted network. It disables it
otherwise. Network trust is established when the user selects the
"Always allow" option for that network.

Test: AdbWifiNetworkMonitorTest
Bug: 423809120
Flag: com.android.server.adb.allow_adb_wifi_reconnect
Change-Id: I625758ea3f58d3cb9650c1d6ac214b52cc73f836