libremidi update to v5.4.3 and added virtual midi out as default

include/libremidi/backends/android/config.hpp

@@ -0,0 +1,23 @@
+#pragma once
+#include <libremidi/config.hpp>
+
+NAMESPACE_LIBREMIDI
+{
+namespace android
+{
+struct input_configuration
+{
+  std::string_view client_name = "libremidi client";
+};
+
+struct output_configuration
+{
+  std::string_view client_name = "libremidi client";
+};
+
+struct observer_configuration
+{
+  std::string_view client_name = "libremidi client";
+};
+}
+}