Add and report test time, rep user time for pibench.
Created by: garloff
The user time is more reliable, due to background activities from booting.
We had not included the time it takes for iperf, fullconntest, LB test in the total cycle time, thus painting a wrong picture ... fixed.
Also report used images in report.
Signed-off-by: Kurt Garloff scs@garloff.de