RFR: JDK-8319516 - Native library suffix impact on the library loading in AIX- Java Class Loader [v2]

[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 seven additional commits since the last revision:

 - remove space
 - remove debug print lines
 - remove debug print lines
 - remove debug lines
 - variable name check
 - code cleanup
 - made changes to file loading procedure

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Changes:
  - all: https://git.openjdk.org/jdk/pull/17945/files
  - new: https://git.openjdk.org/jdk/pull/17945/files/9ad12257..cd219603

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17945&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17945&range=00-01

  Stats: 34 lines in 2 files changed: 32 ins; 1 del; 1 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