RFR: JDK-8319516 - Native library suffix impact on the library loading in AIX- Java Class Loader [v11]

[Suchismith Roy]

> Allow support for both .a and .so files in AIX.
> If .so file is not found, allow fallback to .a extension.
> JBS Issue: [JDK-8319516](https://bugs.openjdk.org/browse/JDK-8319516)

Suchismith Roy has updated the pull request incrementally with two additional commits since the last revision:

 - spaces
 - nits and move file to aix directory

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Changes:
  - all: https://git.openjdk.org/jdk/pull/17945/files
  - new: https://git.openjdk.org/jdk/pull/17945/files/0f6641fb..5f05e278

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17945&range=10
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17945&range=09-10

  Stats: 82 lines in 3 files changed: 38 ins; 40 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/17945.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17945/head:pull/17945

PR: https://git.openjdk.org/jdk/pull/17945