RFR(XXS): 8069296: java/lang/management/MemoryMXBean/LowMemoryTest.java should be quarantined

[Yekaterina Kantserova]

Hi,

Could I please have a review of this very small fix.

bug: https://bugs.openjdk.java.net/browse/JDK-8069296
webrev: http://cr.openjdk.java.net/~ykantser/8069296/webrev.00/

Thanks,
Katja