image_signing: do not fail when chronos does not exist
If the device doesn't create a chronos user, don't throw errors.
For some embedded systems, they don't need a chronos user.
BRANCH=None
BUG=chromium:714598
TEST=signing images still works
Change-Id: I4604beae1e647e024a04583471b8a7d0d4f188fa
Reviewed-on: https://chromium-review.googlesource.com/500027
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: David Riley <davidriley@chromium.org>
1 file changed
