elm_photocam: Fixed T2337, zoom in/out rotated photocam image

Summary:
Currently zoom in/out rotated or flipped image was causing lost of orientation
and aspect of image is also changed. Fixed that by reloading image on pan_obj on zoom
@fix
Signed-off-by: kabeer khan <kabeer.khan@samsung.com>

Reviewers: DaveMDS, jpeg, cedric, raster

Subscribers: jpeg

Differential Revision: https://phab.enlightenment.org/D2381