RFR: JDK-8255612: Explicitly disable dtrace for Oracle OpenJDK Linux builds

[Erik Joelsson]

The OpenJDK build on Linux will determine if the JVM feature "dtrace" should be enabled based on the availability of dtrace on the build host. For Oracle produced OpenJDK builds, we implicitly had this disabled because our build environment didn't have it installed. Rather than having to trust the build host to not have dtrace installed, we would like to make this setting explicit. We don't want to change the default behavior of OpenJDK, so we are adding this configure flag to the jib-profiles.js configuration where appropriate, so it only affects Oracle produced builds.

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Commit messages:
 - Explicitly disable dtrace for Oracle OpenJDK builds

Changes: https://git.openjdk.java.net/jdk/pull/946/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=946&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8255612
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/946.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/946/head:pull/946

PR: https://git.openjdk.java.net/jdk/pull/946