[wrt] Add 4 TCs for wrt-packertool-android-tests

Impacted TCs num(approved): New 4 Update 0 Delete 0
Unit test Platform: Android
Unit test result summary: Pass 2, Fail 2, Block 0
Fail TCs:Crosswalk_Packer_Tool_2.0.1_PythonVersion,Crosswalk_Packer_Tool_3.0_PythonVersion
Fail reason: bug[XWALK-1721]