RFR: 8301788: AlgorithmId should keep lowercase characters from 3rd party providers

[Weijun Wang]

Keep the "NAME -> 1.2.3.4" mapping unchanged but modify "1.2.3.4 -> NAME" to "1.2.3.4 -> Name".

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Commit messages:
 - the fix

Changes: https://git.openjdk.org/jdk/pull/12410/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12410&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8301788
  Stats: 91 lines in 2 files changed: 80 ins; 0 del; 11 mod
  Patch: https://git.openjdk.org/jdk/pull/12410.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12410/head:pull/12410

PR: https://git.openjdk.org/jdk/pull/12410