RFR: 8329131: Fold libjli_static back into libjli on AIX

[Magnus Ihse Bursie]

On AIX, we need a static libjli, since the linker cannot find other libraries (like libjvm.so and libjava.so) using a relative path, as on other platforms.

However, for reasons unclear, we still build a dynamic libjli.so on AIX, even though this is never used. Instead, we also build a static libjli_static.a library (which is then forced to have a different name as to not collide with the dynamic library).

This should be fixed. We should build exactly one libjli on all platforms, be it static or dynamic.

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Commit messages:
 - 8329131: Fold libjli_static back into libjli on AIX

Changes: https://git.openjdk.org/jdk/pull/18497/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18497&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8329131
  Stats: 49 lines in 7 files changed: 10 ins; 30 del; 9 mod
  Patch: https://git.openjdk.org/jdk/pull/18497.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18497/head:pull/18497

PR: https://git.openjdk.org/jdk/pull/18497