Fixed warnings about binding loop when moving SplitterColumn
Fixed warnings about binding loop when moving SplitterColumn

When moving splitter in SplitterColumn, many warnings issued:
	QML Splitter: Binding loop detected for property "width"
This commit fixes bug.

Change-Id: If59accda9eddb6776c4cb417581369a668b7c625
Reviewed-by: Morten Johan Sørvig <84fe11dd8bf63b99760f9a020e6b4a145681baec@digia.com>

kobolabs/qtquickcontrols,mizukusak/qtquickcontrols,drgvond/qtquickcontrols,richardmg/qtcomponents,jfaust/qtquickcontrols,jfaust/qtquickcontrols,kobolabs/qtquickcontrols,kobolabs/qtquickcontrols,drgvond/qtquickcontrols,jfaust/qtquickcontrols,richardmg/qtcomponents,mizukusak/qtquickcontrols,drgvond/qtquickcontrols,richardmg/qtcomponents,mizukusak/qtquickcontrols