In the case where a bootdev does not have a custom get_bootflow function but instead relies on default_get_bootflow to provide one, bootdev_get_bootflow was not handling the case where ops was simply not set. Restructure the function to check for "ops && ops->get_bootflow" and add appropriate log_debug calls for both cases. Signed-off-by: Tom Rini <trini@konsulko.com>