[misc] Change not support usecase status to designed

- 13 features will be ready after crosswalk 7, so change usecase status to designed

Impacted TCs num(approved): New 0, Update 0, Delete 13
Unit test Platform: [Tizen IVI]
Test result summary: Pass 0, Fail 0, Blocked 0
Merge pull request #345 from JianfengXu/xujf/misc/xml

[misc] Change not support usecase status to designed