Fix retry timeout duration
When retrying, the timeout is not computed correctly.
See https://validation.linaro.org/scheduler/job/1895599 The job should not take more than 10s while it's taking 41s.
When retrying, the timeout is not computed correctly.
See https://validation.linaro.org/scheduler/job/1895599 The job should not take more than 10s while it's taking 41s.