fix(Android/ConnectionService): mic not working

Turns out the microphone will not work on some devices when starting in
"audio only", because the audio mode is not set to the MODE_IN_COMMUNICATION,
but to the MODE_IN_CALL. Calling setAudioModeIsVoip(true) makes
the system adjust to MODE_IN_COMMUNICATION and the mic works fine.

android/sdk/src/main/java/org/jitsi/meet/sdk/ConnectionService.java

             request.getAddress(),
             TelecomManager.PRESENTATION_ALLOWED);
         connection.setExtras(request.getExtras());
+
+        connection.setAudioModeIsVoip(true);
+
         // NOTE there's a time gap between the placeCall and this callback when
         // things could get out of sync, but they are put back in sync once
         // the startCall Promise is resolved below. That's because on
         @Override
         public String toString() {
             return String.format(
-                    "ConnectionImpl[adress=%s, uuid=%s]@%d",
+                    "ConnectionImpl[address=%s, uuid=%s]@%d",
                     getAddress(), getCallUUID(), hashCode());
         }
     }