RFR(T): 8224689 ProblemList runtime/appcds/SharedArchiveConsistency.java

[Ioi Lam]

http://cr.openjdk.java.net/~iklam/jdk13/8224689-problem-list-SharedArchiveConsistency/
https://bugs.openjdk.java.net/browse/JDK-8224689

Please review this trivial patch. This test has been failing a few times 
a day in mach5 testing. We should problem-list it until the parent bug 
(https://bugs.openjdk.java.net/browse/JDK-8223336) is fixed.

Thanks
- Ioi