Adding missing QSysInfo to typesystem_core_x11
Adding missing QSysInfo to typesystem_core_x11

Correct fix for failing builds on Linux
BadSingleton/pyside2,BadSingleton/pyside2,IronManMark20/pyside2,IronManMark20/pyside2,qtproject/pyside-pyside,qtproject/pyside-pyside,qtproject/pyside-pyside,IronManMark20/pyside2,qtproject/pyside-pyside,qtproject/pyside-pyside,BadSingleton/pyside2,IronManMark20/pyside2,gbaty/pyside2,gbaty/pyside2,IronManMark20/pyside2,BadSingleton/pyside2,gbaty/pyside2,gbaty/pyside2,gbaty/pyside2,BadSingleton/pyside2