修复ssrc缓存初始化判断错误，导致初始化失败

648540858

2023-09-15 2d11f1b3ded261a0602dcd8ecdca05d459645be5

 src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/ptz/PtzController.java

old mode 100644
new mode 100755
@@ -97,6 +97,9 @@
            cmdCode = 32;
            break;
         case "stop":
            horizonSpeed = 0;
            verticalSpeed = 0;
            zoomSpeed = 0;
            break;
         default:
            break;