RFR: 8332123: [nmt] Move mallocLimit code to the nmt subdir [v5]

[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:

  fixing broken compilation

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/19462/files
  - new: https://git.openjdk.org/jdk/pull/19462/files/8f8addd8..d080dfaf

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=19462&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=19462&range=03-04

  Stats: 6 lines in 1 file changed: 3 ins; 3 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