Disable paygen update tests on daisy_spring.

Paygen update tests with source payloads older than R38 can cause
daisy_spring devices to fail, after which they are hard to recover.
This change applies a point hack that blocks the tests from running
in all cases on daisy_spring.

This hack will need to stay in place until a workaround is found
that prevents the device failures, or we find a reliable recovery
procedure for the failed devices.

BUG=chromium:429325
TEST=cbuildbot/cbuildbot_run_unittest.py

Change-Id: I467d41fdaa64cfc614e6e0cea963485e8fed4ce2
Reviewed-on: https://chromium-review.googlesource.com/226872
Reviewed-by: David James <davidjames@chromium.org>
Tested-by: Richard Barnette <jrbarnette@chromium.org>
1 file changed