BHV-731: Fix issue with "Scroll To Index" in moon.DataList sample.
BHV-731: Fix issue with "Scroll To Index" in moon.DataList sample.

Enyo-DCO-1.1-Signed-off-by: Aaron Tam <aaron.tam@lge.com>

mcanthony/moonstone,enyojs/moonstone,mcanthony/moonstone,mcanthony/moonstone