RFR: 8325616: JFR ZGC Allocation Stall events should record stack traces [v2]

[Stefan Karlsson]

> We currently don't record the stack traces when sending the JFR ZGC Allocation Stall events. Let's add stack traces to the the jdk.ZAllocationStall event.

Stefan Karlsson has updated the pull request incrementally with one additional commit since the last revision:

  Add stackTrace setting to the config files

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Changes:
  - all: https://git.openjdk.org/jdk/pull/17803/files
  - new: https://git.openjdk.org/jdk/pull/17803/files/97334863..d0d2eaa4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17803&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17803&range=00-01

  Stats: 2 lines in 2 files changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/17803.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17803/head:pull/17803

PR: https://git.openjdk.org/jdk/pull/17803