gst1: Add Audio API changes to changelog
gst1: Add Audio API changes to changelog

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