[wrt]update config.xml for wrt-i18n-tizen-tests

[Detailed commit message]
Impacted TCs num(approved): New 0, update 0, deleted 0
Unit test PLatform: Tizen
Result summary: update config.xml to pack to wgt webapp. pack is OK and tcs run normally
Merge pull request #445 from linshen/update-wgt-config

[wrt]update config.xml for wrt-i18n-tizen-tests