[build] set `$(DisableTransitiveFrameworkReferenceDownloads)`#216

jonpryor merged 1 commit intodotnet:maindotnet/android-tools:mainfrom

jonathanpeppers:DisableTransitiveFrameworkReferenceDownloadsjonathanpeppers/xamarin-android-tools:DisableTransitiveFrameworkReferenceDownloadsCopy head branch name to clipboard