gst1: Adjust list of GStreamer packages needed on Arch
gst1: Adjust list of GStreamer packages needed on Arch

ZenithDK/mopidy,adamcik/mopidy,tkem/mopidy,jcass77/mopidy,tkem/mopidy,mopidy/mopidy,ZenithDK/mopidy,jodal/mopidy,vrs01/mopidy,tkem/mopidy,mokieyue/mopidy,adamcik/mopidy,vrs01/mopidy,mokieyue/mopidy,adamcik/mopidy,kingosticks/mopidy,kingosticks/mopidy,vrs01/mopidy,kingosticks/mopidy,mopidy/mopidy,vrs01/mopidy,jodal/mopidy,mokieyue/mopidy,ZenithDK/mopidy,jcass77/mopidy,ZenithDK/mopidy,jodal/mopidy,mopidy/mopidy,mokieyue/mopidy,jcass77/mopidy,tkem/mopidy