[jdk11u-dev] RFR: 8223139: Rename mandatory policy-do routines.

[Goetz Lindenmaier]

I downport this for parity with 11.0.14-oracle.

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Commit messages:
 - Backport ceef0f69dcde777e7fdb6ccccb576ab44def716b

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/449/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=449&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8223139
  Stats: 15 lines in 2 files changed: 0 ins; 0 del; 15 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/449.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/449/head:pull/449

PR: https://git.openjdk.java.net/jdk11u-dev/pull/449