RFR: 8390: Wrong target platform name

[Marcus Hirt]

The 2025-03 target platform has the wrong name.

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Commit messages:
 - 8390: Wrong target platform name in 2025-03

Changes: https://git.openjdk.org/jmc/pull/643/files
  Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=643&range=00
  Issue: https://bugs.openjdk.org/browse/JMC-8390
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jmc/pull/643.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/643/head:pull/643

PR: https://git.openjdk.org/jmc/pull/643