RFR: 8316273: JDK-8315818 broke JVMCIPrintProperties on libgraal [v2]

[Doug Simon]

> This PR prevents the possibility for `JVMCIPrintProperties` to emit output more than once. That possibility was introduced by [JDK-8315818](https://bugs.openjdk.org/browse/JDK-8315818) by allowing JVMCI initialization to happen earlier on a compiler thread that races with the main thread in terms of JVMCI initialization.

Doug Simon has updated the pull request incrementally with one additional commit since the last revision:

  reverted split of compilation init into 2 phases since it's no longer needed

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/15739/files
  - new: https://git.openjdk.org/jdk/pull/15739/files/709c55f0..d9b8fe3b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15739&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15739&range=00-01

  Stats: 9 lines in 3 files changed: 0 ins; 6 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/15739.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15739/head:pull/15739

PR: https://git.openjdk.org/jdk/pull/15739