Include network name in validation logs for dumpsys

Previously this was included in the log messages from NetworkMonitor
but that has been removed (ag/944107), making it frequently impossible
to know what network the logs apply to as there may be no way to
correlate NetIDs to WiFi SSIDs or Cellular networks if the log has wrapped.

Bug: 26075613
Change-Id: I2e3cd41fffb616ab9f855cb16790360bd3414793