raw_rec.mo - squeeze factor for 600D and other 18 mp cameras differs from current

Issue #1562 resolved
Rush created an issue
    /* squeeze factor */
    if (video_mode_resolution == 1 && lv_dispsize == 1 && is_movie_mode()) /* 720p, image squeezed */
    {
        /* assume the raw image should be 16:9 when de-squeezed */
        int correct_height = max_res_x * 9 / 16;
        squeeze_factor = (float)correct_height / max_res_y;
    }
    else squeeze_factor = 1.0f;

For all 18mpix cameras (550D, 600D, 650D, 700D, 100D, M, 60D, 7D) it is 3:2 when de-squeezed. Correct: int correct_height = max_res_x * 2 / 3;