[ppc-aix-port/stage]: Request for approval: 8034801: AIX: (ch) Fix synchronization issue in AixPollPort.java

[Volker Simonis]

Hi,

can I please get approval for downporting this AIX-only change from
jdk9/dev to ppc-aix-port/stage which will then evetnually be pushed to
8u-dev:

http://cr.openjdk.java.net/~simonis/webrevs/8034801/
https://bugs.openjdk.java.net/browse/JDK-8034801
http://hg.openjdk.java.net/jdk9/dev/jdk/rev/c20c6a1eb13c

Thanks,
Volker