change concurrent upload v2 case

Author: YangSen-qn

library/src/androidTest/java/com/qiniu/android/ConcurrentResumeUploadTest.java

@@ -229,8 +229,7 @@ public void testHttpV2(){
                 .chunkSize(4*1024*1024)
                 .useHttps(false)
                 .build();
-//        int[] sizeArray = {500, 1000, 3000, 4000, 5000, 8000, 10000, 20000};
-        int[] sizeArray = {200000};
+        int[] sizeArray = {500, 1000, 3000, 4000, 5000, 8000, 10000, 20000};
         long timestamp = new Date().getTime();
         for (int size : sizeArray) {
             String key = "android_concurrent_resume_http_v2_" + timestamp + "_" + size + "k";