jfx web failed to build when `USE_SYSTEM_MALLOC` is `ON`:

```
jfx/modules/javafx.web/build/linux/Release/WTF/Headers/wtf/Platform.h:58,
jfx/modules/javafx.web/build/linux/Release/WTF/Headers/wtf/Assertions.h:28,
jfx/modules/javafx.web/src/main/native/Source/WebCore/platform/java/WebKitLogging.h:31,
jfx/modules/javafx.web/src/main/native/Source/WebCore/platform/java/WebKitLogging.cpp:28,
jfx/modules/javafx.web/build/linux/Release/WebCore/DerivedSources/unified-sources/UnifiedSource-3c72abbe-47.cpp:1:
jfx/modules/javafx.web/build/linux/Release/WTF/Headers/wtf/PlatformUse.h:351:10: fatal error: bmalloc/BPlatform.h: No such file or directory
  #include <bmalloc/BPlatform.h>
           ^~~~~~~~~~~~~~~~~~~~~
 compilation terminated.
```

After commit `6f28d912024495278c4c35ab054bc2aab480b3e4`:

```
diff --git a/modules/javafx.web/src/main/native/Source/WTF/wtf/PlatformUse.h b/modules/javafx.web/src/main/native/Source/WTF/wtf/PlatformUse.h
index 70c047813f..d30291697a 100644
--- a/modules/javafx.web/src/main/native/Source/WTF/wtf/PlatformUse.h
+++ b/modules/javafx.web/src/main/native/Source/WTF/wtf/PlatformUse.h

...

 #if PLATFORM(IOS_FAMILY)
 #define USE_SANDBOX_EXTENSIONS_FOR_CACHE_AND_TEMP_DIRECTORY_ACCESS 1
 #endif
+
+#if !defined(USE_LIBPAS_JIT_HEAP) && !USE(SYSTEM_MALLOC)
+#include <bmalloc/BPlatform.h>
+#if BENABLE(LIBPAS)
+#if PLATFORM(MAC) && CPU(ARM64)
+#define USE_LIBPAS_JIT_HEAP 1
+#endif
+#endif
+#endif
+
```