[11u] RFR: 8220528: [AIX] Fix basic Xinerama and Xrender functionality

[Langer, Christoph]

Hi,

please help reviewing this backport of the fix for AIX Xinerama/Xrender basic functionality to JDK11 Updates.

Bug: https://bugs.openjdk.java.net/browse/JDK-8220528
Original Change: http://hg.openjdk.java.net/jdk/jdk/rev/0223b7b8a1c5
Webrev: http://cr.openjdk.java.net/~clanger/webrevs/8220528.11u-dev.0/

The patch did not apply cleanly. I had to manually resolve the part around line 125 because the 11u version defines another function for Solaris that didn't exist any more in the head version. Furthermore I needed to fix the #ifdef in line 1641 (new) to explicitly refer Solaris. Otherwise it would not build on AIX.

Thanks
Christoph