RFR: 8330198: Add some class loading related perf counters to measure VM startup

[Calvin Cheung]

Adding a few perf counters related to class loading to measure VM startup. The counters are only active if the user specifies `-Xlog:init` in the command line. A diagnostic flag `ProfileClassLinkage` is added to control the new counters. The flag is set to false by default and will be enabled if `-Xlog:init` is specified.

This change is already in the leyden/premain branch. There are more counters in the branch to measure other stuff. For now, just upstreaming class loader related counters.

Refer to the [comment](https://bugs.openjdk.org/browse/JDK-8330198?focusedId=14665311&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14665311) in the bug report for an example output.

Passed tiers 1 - 4 testing.

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Commit messages:
 - fix build issues on macos-x64 and -aarch64
 - Merge branch 'master' into xloginit-classloading
 - fix linux-x86 and minimal build issues
 - 8330198: Add some class loading related perf counters to measure VM startup

Changes: https://git.openjdk.org/jdk/pull/18790/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18790&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8330198
  Stats: 179 lines in 15 files changed: 158 ins; 6 del; 15 mod
  Patch: https://git.openjdk.org/jdk/pull/18790.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18790/head:pull/18790

PR: https://git.openjdk.org/jdk/pull/18790