RFR: 8313306: More sensible reservation logging [v10]

[Sonia Zaldana Calles]

> This PR implements more specialized logs for virtual memory APIs in the “os” namespace. It uses “os” and “map” as log tags using unified JVM logging as introduced in JEP 158 (https://openjdk.org/jeps/158). 
> 
> As far as testing is concerned, I have added a regression test to verify the logging is working accordingly.

Sonia Zaldana Calles has updated the pull request incrementally with two additional commits since the last revision:

 - Breaking long lines
 - Fixing indentation, lacking commas, removing casting and replacing call with fatal

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Changes:
  - all: https://git.openjdk.org/jdk/pull/17356/files
  - new: https://git.openjdk.org/jdk/pull/17356/files/3ed380e7..a757522d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17356&range=09
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17356&range=08-09

  Stats: 170 lines in 6 files changed: 89 ins; 2 del; 79 mod
  Patch: https://git.openjdk.org/jdk/pull/17356.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17356/head:pull/17356

PR: https://git.openjdk.org/jdk/pull/17356