[jfx11u] RFR: 8265703: Change JavaFX release version in jfx11u to 11.0.12

[Johan Vos]

Increase security release number for JavaFX 11 to 11.0.12
Fix for JDK-8265703

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Commit messages:
 - Increase security release number for JavaFX 11 to 11.0.12

Changes: https://git.openjdk.java.net/jfx11u/pull/1/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jfx11u&pr=1&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8265703
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jfx11u/pull/1.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx11u pull/1/head:pull/1

PR: https://git.openjdk.java.net/jfx11u/pull/1