RFR: 8204160: BiasedLockingTest needs -XX:+UseBiasedLocking

[Stefan Karlsson]

Hi all,

Please review this trivial patch to add -XX:+UseBiasLocking to the 
BiasedLockingTest.java test.

http://cr.openjdk.java.net/~stefank/8204160/webrev.01/

This is needed because some GCs (ZGC) turn off biased locking by default.

Thanks,
StefanK