RFR: 8332123: [nmt] Move mallocLimit code to the nmt subdir [v6]

[Sonia Zaldana Calles]

> Hi all, 
> 
> This PR addresses [8332123](https://bugs.openjdk.org/browse/JDK-8332123) moving malloc limit code under the nmt subdirectory. 
> 
> Thanks, 
> Sonia

Sonia Zaldana Calles has updated the pull request incrementally with one additional commit since the last revision:

  missing include

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Changes:
  - all: https://git.openjdk.org/jdk/pull/19462/files
  - new: https://git.openjdk.org/jdk/pull/19462/files/d080dfaf..7d25b5e4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=19462&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=19462&range=04-05

  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/19462.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19462/head:pull/19462

PR: https://git.openjdk.org/jdk/pull/19462