RFR 9: 8078369: [testbug] java/time/tck/java/time/TCKOffsetTime[now] fails on slow devices

[Roger Riggs]

Please review a timing relaxation so tests do not fail on very slow 
hardware
with more expensive runtime options.  (-Xcomp)

The change will also be backported to jdk 8.

Issue:
    8078369: [testbug] java/time/tck/java/time/TCKOffsetTime[now] fails 
on slow devices

Webrev:
    http://cr.openjdk.java.net/~rriggs/webrev-timeout-8078369/

Thanks, Roger