UsbDebuggingManager: add missing break in switch

Bug: 7079044
Change-Id: Icf4090e79af47db7d068981537c97f2028d8e405

Author: benoitgoby

services/java/com/android/server/usb/UsbDebuggingManager.java

@@ -183,6 +183,7 @@ public void handleMessage(Message msg) {
 
                     mOutputStream = null;
                     mSocket = null;
+                    break;
 
                 case MESSAGE_ADB_ALLOW: {
                     String key = (String)msg.obj;