QtIFW

Fix the broken update case.

If we have more than one component to update, keep
all components that might have an update though are not
selected (scheduled) for update. Means 3 components to
update, on selected, two deselected, keep the later and
only add the single component operations to the undo list.

Change-Id: I8364a46bf76d8fd73b1bdbce446ba6ea90c2dc53
Reviewed-on: http://codereview.qt.nokia.com/3045
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Niels Weber <niels.2.weber@nokia.com>
Reviewed-by: Tim Jenssen <tim.jenssen@nokia.com>