Fix "bad revision" error when we run "update_submodules" with no option.
This adds "origin/trunk" branch name for "util/goswid".
Change-Id: Ie84d40fa00c6d0032b93917ad96e60120388eab5
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68650
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Martin L Roth <gaumless@gmail.com>