Make not assert when file path is invalid.
Make not assert when file path is invalid.

Change-Id: I26806b0f0d03b0047f19297fb6f9fe9bf2423fdf
Signed-off-by: seungho <eb41b4b4ab7814234e401c31ebc0c41202488340@samsung.com>

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