[Xamarin.Android.Tools.AndroidSdk] Add API-34 to KnownVersions (#212)

Author: tondat

src/Xamarin.Android.Tools.AndroidSdk/AndroidVersions.cs

@@ -191,6 +191,9 @@ static bool MatchesId (AndroidVersion version, string id)
 			new AndroidVersion (33, "13.0") {
 				AlternateIds = new[]{ "T" },
 			},
+			new AndroidVersion (34, "14.0") {
+				AlternateIds = new[]{ "U", "UpsideDownCake", "Upside Down Cake" },
+			},
 		};
 	}
 }