git: openjdk/jfx11u: master: 8293375: add_definitions USE_SYSTEM_MALLOC when USE_SYSTEM_MALLOC is ON

[Kevin Rushforth]

Changeset: ac4756c6
Author:    Kevin Rushforth <kcr at openjdk.org>
Date:      2023-02-11 14:45:06 +0000
URL:       https://git.openjdk.org/jfx11u/commit/ac4756c6b2365688d6340ff0efb379dd247b7e2b

8293375: add_definitions USE_SYSTEM_MALLOC when USE_SYSTEM_MALLOC is ON

Backport-of: 28f8fa9c20363ced9a94787ecfd45735b3e6b82e

! modules/javafx.web/src/main/native/Source/WebCore/PlatformJava.cmake