[jdk17u] RFR: 8273646: Add openssl from path variable also in to Default System Openssl Path in OpensslArtifactFetcher

[Thejasvi Voniadka]

This is a straight, clean backport of the following change:

8273646: Add openssl from path variable also in to Default System Openssl Path in OpensslArtifactFetcher

The patch applies cleanly, and the tests pass following the patch.

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Commit messages:
 - Backport a5108a605e6a1e427d90dbeeb8630a3d01d6b405

Changes: https://git.openjdk.java.net/jdk17u/pull/84/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u&pr=84&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8273646
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk17u/pull/84.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u pull/84/head:pull/84

PR: https://git.openjdk.java.net/jdk17u/pull/84