[jdk11u-dev] RFR: 8303215: Make thread stacks not use huge pages

[Thomas Stuefe]

Backported for parity with Oracle and as preparation to fix https://bugs.openjdk.org/browse/JDK-8312182.

Backport is unclean, but the difference is minor. I had to adjust hunks in `os::large_page_init()` since the surrounding coding changed a lot since JDK 11.

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Commit messages:
 - Backport 59d9d9fcb93c26dd8931d70934b889245b050acc

Changes: https://git.openjdk.org/jdk11u-dev/pull/2208/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2208&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8303215
  Stats: 27 lines in 2 files changed: 23 ins; 3 del; 1 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2208.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2208/head:pull/2208

PR: https://git.openjdk.org/jdk11u-dev/pull/2208