RFR: 8345590: AIX 'make all' fails after JDK-8339480

[Matthias Baesken]

On AIX we after [JDK-8339480](https://bugs.openjdk.org/browse/JDK-8339480) into this error


make all
Building target 'all' in configuration '/open_jdk/jdk/build_aix'
Creating 1 test executable file(s) for BUILD_LIBTEST_JTREG_EXECUTABLES
StaticLibs.gmk:107: *** Unsupported platform. Stop.
make/Main.gmk:457: recipe for target 'static-launcher' failed
gmake[2]: *** [static-launcher] Error 1


For now, do not build the  static-jdk-image  part on AIX.

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Commit messages:
 - JDK-8345590

Changes: https://git.openjdk.org/jdk/pull/22713/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22713&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8345590
  Stats: 4 lines in 1 file changed: 4 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/22713.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22713/head:pull/22713

PR: https://git.openjdk.org/jdk/pull/22713