RFR: 8265666: Enable AIX build platform to make external debug symbols [v2]

[Andrew Leonard]

> Signed-off-by: Andrew Leonard <anleonar at redhat.com>

Andrew Leonard has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  8265666: Enable AIX build platform to make external debug symbols
  
  Signed-off-by: Andrew Leonard <anleonar at redhat.com>

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3763/files
  - new: https://git.openjdk.java.net/jdk/pull/3763/files/731bd9c3..d457570c

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3763&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3763&range=00-01

  Stats: 3 lines in 1 file changed: 3 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3763.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3763/head:pull/3763

PR: https://git.openjdk.java.net/jdk/pull/3763