RFR : 8198275 AIX build broken after latest whitebox.cpp changes

[Baesken, Matthias]

Hi, please review  this AIX related fix.

Recent changes  in jdk/hs  caused a compilation error :

The AIX build is broken, error is /nb/rs6000_64/nightly/jdk-hs/src/hotspot/share/utilities/elfFile.hpp", line 33.10: 1540-0836 (S) The #include file <elf.h> is not found. (whitebox.o compilation failed).

The fix  handles AIX in the same way Windows and "APPLE"  is handled .

Bug :

https://bugs.openjdk.java.net/browse/JDK-8198275

Webrev :

http://cr.openjdk.java.net/~mbaesken/webrevs/8198275.0/



Thanks, Matthias