e_comp_object: get image data from e_pixmap if image object is not still rendered.
e_comp_object: get image data from e_pixmap if image object is not still rendered.

Change-Id: I46556762c0ef9d6708c810e35c99168dbd290c9f

tizenorg/platform.upstream.enlightenment,tizenorg/platform.upstream.enlightenment,tizenorg/platform.upstream.enlightenment