Fix winevst build

Signed-off-by: falkTX <falktx@falktx.com>

source/plugin/carla-vst-export-bridged.cpp

@@ -41,7 +41,7 @@ static HINSTANCE getCurrentModuleInstanceHandle() noexcept
 }
 
 CARLA_PLUGIN_EXPORT
-BOOL WINAPI DllMain(HINSTANCE hInst, DWORD, LPVOID)
+BOOL WINAPI DllMain(HINSTANCE hInst, DWORD reason, LPVOID)
 {
     if (reason == DLL_PROCESS_ATTACH)
         currentModuleHandle = hInst;