Fix glib build issue on android api 28
Fix glib build issue on android api 28

Part-of: <https://gitlab.freedesktop.org/gstreamer/cerbero/-/merge_requests/519>

GStreamer/cerbero,nirbheek/cerbero,GStreamer/cerbero,GStreamer/cerbero,GStreamer/cerbero,nirbheek/cerbero,GStreamer/cerbero,nirbheek/cerbero,nirbheek/cerbero