Fixed abort issue by NULL in Region/Language changed callback
Fixed abort issue by NULL in Region/Language changed callback

Change-Id: Ia5204b649cd9495b19206e0d3bb2d84749f301c5

dalihub/dali-adaptor,dalihub/dali-adaptor,dalihub/dali-adaptor,dalihub/dali-adaptor,dalihub/dali-adaptor