BHV-6773  Update feedback when in preview mode

Feedback of video player should response to user's input  even though it is preview mode.

Enyo-DCO-1.1-Signed-off-by: David Um david.um@lge.com
BHV-6773  Add comments

Enyo-DCO-1.1-Signed-off-by: David Um david.um@lge.com
BHV-6773  Fix typo

Enyo-DCO-1.1-Signed-off-by: David Um david.um@lge.com
Merge pull request #1332 from enyojs/BHV-6773-davidum

Bhv 6773 Update feedback when in preview mode

Reviewed-By: Cole Davis (cole.davis@lge.com)