lava_helper: Further increased timeouts

This patch is aimed at increasing stability at
the test farm. It introduces the following changes:
* Power-off timeots have been increased to 5 minutes.
* Overall job execution time-out has been increased
  by 60 minutes.
* Monitor matching has been moved to the start
  of the line that regex is parsing.

Change-Id: If3bcb8a944ca08e941e1b6007ca759b15b1f67de
Signed-off-by: Minos Galanakis <minos.galanakis@linaro.org>
2 files changed