Merge pull request #506 from google/gbg/a2dp-fixes

a2dp: emit delay_report

Author: barbibulle

bumble/avdtp.py

@@ -2162,6 +2162,9 @@ def on_close_command(self):
     def on_abort_command(self):
         self.emit('abort')
 
+    def on_delayreport_command(self, delay: int):
+        self.emit('delay_report', delay)
+
     def on_rtp_channel_open(self):
         self.emit('rtp_channel_open')