[8u20] Request for approval for: 8034176 Update mapfile for libjfr

[Staffan Larsen]

Please approve this change for 8u20.

bug: https://bugs.openjdk.java.net/browse/JDK-8034176
jdk9 changeset: http://hg.openjdk.java.net/jdk9/dev/jdk/rev/9d1b29b0ab73
review thread: http://mail.openjdk.java.net/pipermail/serviceability-dev/2014-February/014158.html

Thanks,
/Staffan