[image] Supply correct width and height limits to interpolate

The supplied width and height were for the new rather than the old image so
some reads would access pixels beyond the edge of the image.

src/libplybootsplash/ply-image.c

@@ -352,7 +352,7 @@ ply_image_resize (ply_image_t *image,
         {
           old_x = x * scale_x;
           new_image->layout.as_pixels[x + y * width] =
-                    ply_image_interpolate (image, width, height, old_x, old_y);
+                    ply_image_interpolate (image, old_width, old_height, old_x, old_y);
         }
     }
   return new_image;