RFR(xs): 8153727: AIX jdk build broken after 8145174

[Thomas Stüfe]

Hi all,

please review this tiny build fix for AIX. Thank you!

Webrev:
http://cr.openjdk.java.net/~stuefe/webrevs/8153727-fix-aixbuild-after-8145174/webrev.00/webrev/

Bug: https://bugs.openjdk.java.net/browse/JDK-8153727

Kind Regards, Thomas