On systems with FWU enabled but without the required DT changes the boottime checks fail. The failures are only reported via log_debug() which is compiled out by default, so the user has no idea what is going on. Use log_err() to make these failures visible. Signed-off-by: Michal Simek <michal.simek@amd.com> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>