[jdk17u-dev] RFR: 8283911: DEFAULT_PROMOTED_VERSION_PRE not reset to 'ea' for jdk-17.0.4

[Andrew John Hughes]

DEFAULT_PROMOTED_VERSION_PRE has not been reset to 'ea' for either the 17.0.3 or 17.0.4 development cycles.

While the value is not used by `configure`, we have started to rely on this value ourselves to detect if the source is for an early access (EA) or general access (GA) build, so it would be helpful if the value in the sources was accurate.

This change would need to be reverted just before the `-ga` tag.

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Commit messages:
 - 8283911: DEFAULT_PROMOTED_VERSION_PRE not reset to 'ea' for jdk-17.0.4

Changes: https://git.openjdk.java.net/jdk17u-dev/pull/307/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=307&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8283911
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk17u-dev/pull/307.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u-dev pull/307/head:pull/307

PR: https://git.openjdk.java.net/jdk17u-dev/pull/307