[packagechooser] Connect UI to model

The model needs to be attached to the widget; because of changes
in the order that widget() and setConfigurationMap() are called,
the model is created earlier, but needs to be connected later.

src/modules/packagechooser/Config.cpp

@@ -169,6 +169,7 @@ fillModel( PackageListModel* model, const QVariantList& items )
             model->addPackage( PackageItem( item_map ) );
         }
     }
+    cDebug() << Logger::SubEntry << "Loaded PackageChooser with" << model->packageCount() << "entries.";
 }
 
 void

src/modules/packagechooser/PackageChooserViewStep.cpp

@@ -71,6 +71,7 @@ PackageChooserViewStep::widget()
         connect( m_widget, &PackageChooserPage::selectionChanged, [=]() {
             emit nextStatusChanged( this->isNextEnabled() );
         } );
+        hookupModel();
     }
     return m_widget;
 }