[new uImage] Rename and move print_image_hdr() routine

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
diff --git a/common/cmd_usb.c b/common/cmd_usb.c
index db2e754..2d7a85a 100644
--- a/common/cmd_usb.c
+++ b/common/cmd_usb.c
@@ -398,7 +398,7 @@
 		return 1;
 	}
 
-	print_image_hdr (hdr);
+	image_print_contents (hdr);
 
 	cnt = image_get_image_size (hdr);
 	cnt += info.blksz - 1;