Revert "Merge tag 'dm-pull-20jul20' of git://git.denx.de/u-boot-dm"

This reverts commit 5d3a21df66, reversing
changes made to 56d37f1c56.

Unfortunately this is causing CI failures:
https://travis-ci.org/github/trini/u-boot/jobs/711313649

Signed-off-by: Tom Rini <trini@konsulko.com>

tools/fit_image.c

@@ -53,7 +53,7 @@ static int fit_add_file_data(struct image_tool_params *params, size_t size_inc,
 	}
 
 	/* for first image creation, add a timestamp at offset 0 i.e., root  */
-	if (params->datafile || params->reset_timestamp) {
+	if (params->datafile) {
 		time_t time = imagetool_get_source_date(params->cmdname,
 							sbuf.st_mtime);
 		ret = fit_set_timestamp(ptr, 0, time);