修复6月25日合并271时，变量类型未同步更新的问题

koisi

2024-08-05 c1a8e62f2341e380f25f9f5b5029865777c0118a

 src/main/java/com/genersoft/iot/vmp/gb28181/bean/DeviceChannel.java

@@ -535,11 +535,11 @@
      this.subCount = subCount;
   }

   public boolean isHasAudio() {
   public Boolean getHasAudio() {
      return hasAudio;
   }

   public void setHasAudio(boolean hasAudio) {
   public void setHasAudio(Boolean hasAudio) {
      this.hasAudio = hasAudio;
   }