Fix setAlignment() of QHBoxLayout/QVBoxLayout
Fix setAlignment() of QHBoxLayout/QVBoxLayout

Fixed typesystem_widgets_common.xml
After the fix, PySide2 is able to call QHBoxLayout::setAlignment() and
QVBoxLayout::setAlignment() .
e.g.
layout = QHBoxLayout()
layout.setAlignment(Qt.AlignLeft)

qtproject/pyside-pyside,qtproject/pyside-pyside,gbaty/pyside2,IronManMark20/pyside2,qtproject/pyside-pyside,IronManMark20/pyside2,BadSingleton/pyside2,gbaty/pyside2,BadSingleton/pyside2,gbaty/pyside2,gbaty/pyside2,IronManMark20/pyside2,qtproject/pyside-pyside,BadSingleton/pyside2,IronManMark20/pyside2,BadSingleton/pyside2,gbaty/pyside2,BadSingleton/pyside2,IronManMark20/pyside2,qtproject/pyside-pyside