[webapi] Update Screen Orientation Makefile and fix one blok issue

- blink Makefile.am have issue, need to be fixed, and window_onorientationchange_basic timeout need to lower than 2000.

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: Tizen IVI (crosswalk-8.36.156.0)
Tizen test result summary: Pass 5 Fail 9, Blocked 0
Merge pull request #350 from xinliux/xinliux/screenorientation-issue

[webapi] Update Screen Orientation Makefile and fix one block issue