ci.jpl: Increase LAVA timeout by 1000s =~ 15min

We have builds which seems to go ok, but e.g. last ~30 LAVA jobs don't
finish on time.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: If1e507ea6dbddbc16201c10a857b469e34523db2
1 file changed