ENYO-1447: [W2_Accessibility] It doesn't support speech rate when reading title
ENYO-1447: [W2_Accessibility] It doesn't support speech rate when reading title

change code according to PR comment.

Enyo-DCO-1.1-Signed-off-by: Jaewon Jang <jaewon98.jang@lgepartner.com>

webOS-DevRel/webOS.js