efi_loader: add missing lf in error message

Messages written with log_err() should terminate with a linefeed.

Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/efi_loader/efi_memory.c

@@ -652,7 +652,7 @@ void *efi_alloc(size_t size)
 
 	if (efi_allocate_pool(EFI_BOOT_SERVICES_DATA, size, &buf) !=
 	    EFI_SUCCESS) {
-		log_err("out of memory");
+		log_err("out of memory\n");
 		return NULL;
 	}
 	memset(buf, 0, size);