Add @telemetry to telemetry hosts, keeping existing @ads (#4143)

data/microsoft-dev

@@ -59,6 +59,7 @@ xamarin.com
 
 full:az764295.vo.msecnd.net
 full:bingsettingssearch.trafficmanager.net
+full:dc.services.visualstudio.com @telemetry
 full:default.exp-tas.com
 full:developer.microsoft.com
 full:download.visualstudio.microsoft.com @cn
@@ -68,6 +69,7 @@ full:poshtestgallery.cloudapp.net
 full:psg-int-centralus.cloudapp.net
 full:psg-int-eastus.cloudapp.net
 full:rink.hockeyapp.net
+full:rt.services.visualstudio.com @telemetry
 full:vscode-sync-insiders.trafficmanager.net
 full:vscode-sync.trafficmanager.net
 full:vscode.blob.core.windows.net