修改主播播放时间bug

mec-biz/src/main/java/com/ym/mec/biz/service/impl/ImLiveBroadcastRoomServiceImpl.java

@@ -481,7 +481,7 @@ public class ImLiveBroadcastRoomServiceImpl extends ServiceImpl<ImLiveBroadcastR
             //删除房间主讲人数据
             speakerCache.delete();
             //获取主讲人直播时长
-            speakerLiveTime = speakerInfo.getTotalLiveTime();
+            speakerLiveTime = liveData.getLiveTime();
         }
 
         //写入im_live_broadcast_room_member表，校验用户观看时长，不能大于主讲人直播时长