BHV-8486: Set the correct style property when control does not yet have DOM node.

Issue
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The wrong style property is being set on a control which does not yet have a DOM node.

Fix
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We conditionally set the style property appropriately, based on the existence of the DOM node.

Enyo-DCO-1.1-Signed-off-by: Aaron Tam <aaron.tam@lge.com>