tools: imagetool: Extend print_header() by params argument

This allows image type print_header() callback to access struct
image_tool_params *params.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/fit_image.c b/tools/fit_image.c
index 8763a36..9fe69ea 100644
--- a/tools/fit_image.c
+++ b/tools/fit_image.c
@@ -944,7 +944,7 @@
 	(void *)&header,
 	fit_check_params,
 	fit_verify_header,
-	fit_print_contents,
+	fit_print_header,
 	NULL,
 	fit_extract_contents,
 	fit_check_image_types,