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/ublimage.c b/tools/ublimage.c
index 1d2e897..8f9b58c 100644
--- a/tools/ublimage.c
+++ b/tools/ublimage.c
@@ -202,7 +202,7 @@
 	return 0;
 }
 
-static void ublimage_print_header(const void *ptr)
+static void ublimage_print_header(const void *ptr, struct image_tool_params *params)
 {
 	struct ubl_header *ubl_hdr = (struct ubl_header *) ptr;