[jdk11u-dev] RFR: 8215544: SA: Modify ClhsdbLauncher to add sudo privileges to enable MacOS tests on Mach5

[Goetz Lindenmaier]

I backport this to improve mac testing and to fix a test failure.

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Commit messages:
 - Backport 86fcd475b1227cff0fc9f9557f542ca6bd3abfe0

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/912/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=912&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8215544
  Stats: 116 lines in 4 files changed: 99 ins; 8 del; 9 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/912.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/912/head:pull/912

PR: https://git.openjdk.java.net/jdk11u-dev/pull/912