[update] utc，海信信号机灯态接收，添加return语句

signal-utc-hisense-service/src/main/java/net/wanji/utc/hisense/netty/handler/NettyServerHandler.java

@@ -57,6 +57,7 @@ public class NettyServerHandler extends SimpleChannelInboundHandler<DatagramPack
             String crossId = pojo.getCID();
             Map<String, RunningLightsStatusPojo> cache = SignalDataCache.runningStateInfoCache;
             cache.put(crossId, pojo);
+            return;
         }
 
         Object bean = ServiceBeanContext.getBean(className);