FS-4768 windows add libmpg download depends

libs/win32/mpg123/libmpg123.2012.vcxproj

@@ -1325,6 +1325,11 @@ yasm -a x86 -p gas -r raw -f win32 -g null -m x86 -o "$(ProjectDir)..\libmpg123\
     <None Include="..\..\libmpg123\src\libmpg123\synth_x86_64_s32.S" />
     <None Include="..\..\libmpg123\src\libmpg123\tabinit_mmx.S" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Download mpg123.2012.vcxproj">
+      <Project>{e796e337-de78-4303-8614-9a590862ee95}</Project>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>