[webapi][XWALK-1914] update 21 case status for SIMD

- Fail Reason: Some methods in SIMD is not supported.

Impacted TCs num(apporved): New 0, Update 21, Delete 0
Unit test Platform: Andriod
Unit test result summary: Pass 21, Fail 0, Blocked 0
Merge pull request #926 from JianfengXu/xujf/simd/1914

[webapi][XWALK-1914] update 21 case status for SIMD