BHV-2169: Disable SimplePicker Arrows when it has less than 2 items.

SimplePicker check wrap first then check maxIndex to enable/disable arrows.
But, arrows should be disabled when it has less than 2 items even if it is wrapping.

So, changing the order of condition check to check maxIndex before wrap.

DCO-1.1-Signed-Off-By: Kunmyon Choi kunmyon.choi@lge.com