Fix webp loading decode frame bug
Fix webp loading decode frame bug

When we try to decode at the same frame, same loader
and not 0 frame, It will fail to decode.

Due to we don't hold latest preload pixel buffer,
It will think that we fail to decode the frame.

This patch make we decode current frame one more time.

Change-Id: I6ab6cd0a5929c4d7b184d0508313c6906750ab9a
Signed-off-by: Eunki, Hong <301831f1139537c1cbbc3eb529a9eda692d8c1bb@samsung.com>

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