[jdk11u-dev] RFR: 8303476: Add the runtime version in the release file of a JDK image

[Goetz Lindenmaier]

I backport this for parity with 11.0.20-oracle.

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Commit messages:
 - Backport 32247c336a189a40f696626a2578c65535ef6376

Changes: https://git.openjdk.org/jdk11u-dev/pull/1863/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1863&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8303476
  Stats: 322 lines in 3 files changed: 173 ins; 149 del; 0 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1863.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/1863/head:pull/1863

PR: https://git.openjdk.org/jdk11u-dev/pull/1863