[FIX] stock_landed_costs: use correct UoM

Use the normalized quantity, otherwise the amount per unit is wrongly
calculated.

addons/stock_landed_costs/stock_landed_costs.py

@@ -70,7 +70,7 @@ class stock_landed_cost(osv.osv):
                 volume = move.product_id and move.product_id.volume * move.product_qty
                 for quant in move.quant_ids:
                     total_cost += quant.cost * quant.qty
-                vals = dict(product_id=move.product_id.id, move_id=move.id, quantity=move.product_uom_qty, former_cost=total_cost, weight=weight, volume=volume)
+                vals = dict(product_id=move.product_id.id, move_id=move.id, quantity=move.product_qty, former_cost=total_cost, weight=weight, volume=volume)
                 lines.append(vals)
         if not lines:
             raise osv.except_osv(_('Error!'), _('The selected picking does not contain any move that would be impacted by landed costs. Landed costs are only possible for products configured in real time valuation with real price costing method. Please make sure it is the case, or you selected the correct picking'))