RFR: 8259555: Webkit crashes on Apple Silicon

[Arun Joseph]

WebKit crashes during JavaScriptCore initialization code for Apple Silicon.

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Commit messages:
 - 8259555: Webkit crashes on Apple Silicon

Changes: https://git.openjdk.java.net/jfx/pull/452/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jfx&pr=452&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8259555
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jfx/pull/452.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/452/head:pull/452

PR: https://git.openjdk.java.net/jfx/pull/452