[jfx24u] RFR: 8354318: freetype.c: compilation error: 'incompatible pointer type' with gcc 14

[Kevin Rushforth]

Clean backport of "incompatible pointer type" fix to jfx24u

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Commit messages:
 - Backport 5a897ab7017107471528ab527dac505d2e33aca9

Changes: https://git.openjdk.org/jfx24u/pull/21/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx24u&pr=21&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354318
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jfx24u/pull/21.diff
  Fetch: git fetch https://git.openjdk.org/jfx24u.git pull/21/head:pull/21

PR: https://git.openjdk.org/jfx24u/pull/21