Fix loading the configuration when running pdc_import_compose manually
    
    The config is a mix of the default configuration together with the
    toddler specific configuration and since this toddler shares some
    configuration information with other toddlers, some of the information
    it needs are in the 'default' section.
    So compile the configuration needed from both places.
    
    Signed-off-by: Pierre-Yves Chibon <pingou@pingoured.fr>