RFR: Small updates to jdk.json mapping [v2]

[Joe Darcy]

> Simplify AIX libjli mapping and remove various HotSpot regression tests from core-libs-dev.

Joe Darcy has updated the pull request incrementally with one additional commit since the last revision:

  Condense core libs rules for jdk/internal

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Changes:
  - all: https://git.openjdk.java.net/skara/pull/751/files
  - new: https://git.openjdk.java.net/skara/pull/751/files/a3b54cf4..1e915707

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=751&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=751&range=00-01

  Stats: 14 lines in 1 file changed: 0 ins; 13 del; 1 mod
  Patch: https://git.openjdk.java.net/skara/pull/751.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/751/head:pull/751

PR: https://git.openjdk.java.net/skara/pull/751