Fix importing of gst module on GNU/kFreeBSD
Fix importing of gst module on GNU/kFreeBSD

alessandrod/gst-python,freedesktop-unofficial-mirror/gstreamer-sdk__gst-python,lubosz/gst-python,pexip/gst-python,freedesktop-unofficial-mirror/gstreamer__gst-python,GStreamer/gst-python,lubosz/gst-python,lubosz/gst-python,freedesktop-unofficial-mirror/gstreamer-sdk__gst-python,pexip/gst-python,freedesktop-unofficial-mirror/gstreamer-sdk__gst-python,alessandrod/gst-python,pexip/gst-python,freedesktop-unofficial-mirror/gstreamer__gst-python,alessandrod/gst-python,GStreamer/gst-python,freedesktop-unofficial-mirror/gstreamer-sdk__gst-python,freedesktop-unofficial-mirror/gstreamer__gst-python,GStreamer/gst-python