Update for GIO static module loading changes

The way that GIO modules are named has changed due to upstream GLib natively adding support for loading static GIO modules. This means that any GStreamer application using gnutls for SSL/TLS on the Android or iOS platforms (or any other setup using static libraries) will fail to link looking for the g_io_module_gnutls_load_static() function. The new function name is now g_io_gnutls_load(gpointer data). data can be NULL for a static library.

I think we need to update examples for this, or am I missing something?