[aarch64-port-dev ] RFR: 8168567 - Fix for 81666972 (not 8160376) breaks aarch64 build

[White, Derek]

Please review simple fix to repair aarch64 build.


BUG: JDK-8168567 (https://bugs.openjdk.java.net/browse/JDK-8168567)

Webrev: http://cr.openjdk.java.net/~drwhite/8168567/webrev.01


Built on aarch64, smoketested.


Thanks


 - Derek