[wrt] Update app name for rtcore CombinationValue TC

Impacted TC num(approved): New 0, Update 1, Delete 0
Unit test platform: Tizen
Unit test result summary: Pass 0, Fail 1, Block 0
Fail reason: "<" display incorrectly in DB
Update reason: < in html file will lead to the back of the content can't display, so update for '<'