[lilliput-jdk17u:lilliput] RFR: 8319801: Recursive lightweight locking: aarch64 implementation

[Roman Kennke]

Backports https://github.com/openjdk/jdk/commit/18cea823a173e1b8b48d276daeca67b2a5cf3584

Implements the aarch64 parts of recursive lightweight locking.

Unclean, mostly because of biased locking.

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Commit messages:
 - 8319801: Recursive lightweight locking: aarch64 implementation

Changes: https://git.openjdk.org/lilliput-jdk17u/pull/83/files
  Webrev: https://webrevs.openjdk.org/?repo=lilliput-jdk17u&pr=83&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8319801
  Stats: 488 lines in 9 files changed: 350 ins; 80 del; 58 mod
  Patch: https://git.openjdk.org/lilliput-jdk17u/pull/83.diff
  Fetch: git fetch https://git.openjdk.org/lilliput-jdk17u.git pull/83/head:pull/83

PR: https://git.openjdk.org/lilliput-jdk17u/pull/83