We expect the profile and bootstage to agree on timing, but when
running on slow machines there can be a larger descrepency. Increase the
tolerance to fix this.
Fixes: 9cea4797ae ("trace: Add a test")
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a test which runs sandbox, collects a trace and makes sure it can
be processed by trace-cmd. This should ensure that this feature continues
to work as U-Boot and trace-cmd evolve.
Signed-off-by: Simon Glass <sjg@chromium.org>