[misc-wrt] Update test steps of googleplay tests

 Impacted TCs num(approved): new 0, update 5, delete 0
 Unit test platform: [Android]
 Unit test result summary: Pass 5, Fail 0, Block 0
Merge pull request #885 from Honry/Honry/update-google-play-steps

[misc-wrt] Update test steps of googleplay tests