[wrt][xwalk-3046] Update one case for wrt-packertoolmanu-android-tests

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: Android
Android test result summary: Pass 1, Fail 0, Block 0
Merge pull request #1492 from wanghongjuan/wrt/xwalk-3046

[wrt][xwalk-3046] Update one case for wrt-packertoolmanu-android-tests