VirtualKeyboard does not respect disable-layouts when building statically

Setting disable-layouts flag is not reflected in static build.

plugins/platforminputcontexts/libqtvirtualkeyboardplugin.a(plugin.obj): In function `QVirtualKeyboardPlugin::create(QString const&, QStringList const&)':
qt5/qtvirtualkeyboard/src/plugin/plugin.cpp:58: undefined reference to `qInitResources_qmake_virtualkeyboard_layouts()'
qt5/qtvirtualkeyboard/src/plugin/plugin.cpp:60: undefined reference to `qInitResources_virtualkeyboard_default_style()'
qt5/qtvirtualkeyboard/src/plugin/plugin.cpp:61: undefined reference to `qInitResources_virtualkeyboard_retro_style()'

Please see qtvirtualkeyboard\src\plugin\plugin.cpp