[jdk11u-dev] RFR: 8288985: P11TlsKeyMaterialGenerator should work with ChaCha20-Poly1305

[zzambers]

Backport making P11TlsKeyMaterialGenerator work with ChaCha20-Poly1305

Clean backport, passed jdk_security.

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Commit messages:
 - Backport b6bd190d8d10fdb177f9fb100c9f44c9f57a3cb5

Changes: https://git.openjdk.org/jdk11u-dev/pull/1369/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1369&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8288985
  Stats: 96 lines in 2 files changed: 95 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1369.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1369/head:pull/1369

PR: https://git.openjdk.org/jdk11u-dev/pull/1369