[PASSPOINT] Add metrics to determine deployment/avail of Passpoint

  // Count of connection attempts that were initiated unsuccessfully

  optional int32 num_open_network_connect_message_failed_to_send = 82;

  // Histogram counting instances of scans with N many HotSpot 2.0 R1 APs

  repeated NumConnectableNetworksBucket observed_hotspot_r1_aps_in_scan_histogram = 83;

  // Histogram counting instances of scans with N many HotSpot 2.0 R2 APs

  repeated NumConnectableNetworksBucket observed_hotspot_r2_aps_in_scan_histogram = 84;

  // Histogram counting instances of scans with N many unique HotSpot 2.0 R1 ESS.

  // Where ESS is defined as the (HESSID, ANQP Domain ID), (SSID, ANQP Domain ID) or

  // (SSID, BSSID) tuple depending on AP configuration (in the above priority

  // order).

  repeated NumConnectableNetworksBucket observed_hotspot_r1_ess_in_scan_histogram = 85;

  // Histogram counting instances of scans with N many unique HotSpot 2.0 R2 ESS.

  // Where ESS is defined as the (HESSID, ANQP Domain ID), (SSID, ANQP Domain ID) or

  // (SSID, BSSID) tuple depending on AP configuration (in the above priority

  // order).

  repeated NumConnectableNetworksBucket observed_hotspot_r2_ess_in_scan_histogram = 86;

  // Histogram counting number of HotSpot 2.0 R1 APs per observed ESS in a scan

  // (one value added per unique ESS - potentially multiple counts per single

  // scan!)

  repeated NumConnectableNetworksBucket observed_hotspot_r1_aps_per_ess_in_scan_histogram = 87;

  // Histogram counting number of HotSpot 2.0 R2 APs per observed ESS in a scan

  // (one value added per unique ESS - potentially multiple counts per single

  // scan!)

  repeated NumConnectableNetworksBucket observed_hotspot_r2_aps_per_ess_in_scan_histogram = 88;

}

// Information that gets logged for every WiFi connection.