[jdk18] RFR: JDK-8278967 rmiregistry fails to start because SecurityManager is disabled

[Stuart Marks]

Enable the security manager in rmiregistry's launcher arguments.

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

Commit messages:
 - Add security manager property to rmiregistry launcher arguments.

Changes: https://git.openjdk.java.net/jdk18/pull/45/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk18&pr=45&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8278967
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk18/pull/45.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk18 pull/45/head:pull/45

PR: https://git.openjdk.java.net/jdk18/pull/45