RFR: 8028265: Add legacy tz tests to OpenJDK

[Yoshiki Sato]

Please review this PR.  The PR open sources the closed timezone tests.

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Commit messages:
 - Minor change added to Makefile
 - 8028265: Move closed timezone tests to open repository

Changes: https://git.openjdk.org/jdk/pull/9476/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9476&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8028265
  Stats: 1221 lines in 9 files changed: 1221 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/9476.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9476/head:pull/9476

PR: https://git.openjdk.org/jdk/pull/9476