Pull data from Drupal entity reference field into CiviCRM?
One possibility would be to use views module to create a view that displays auction package nodes, with a contextual filter for the contribution reference field. Then you provide a block display and configure the block to show on contribution pages; it should show the package that is referencing that contribution. 

This doesn't pull any Drupal entity data into the CiviCRM database, but it should allow you to display the entity data for the auction package that is referencing the contribution. 

Often times it is ideal to keep the Drupal entities in Drupal and the CiviCRM entities in CiviCRM and connect them using reference fields. You should still be able to display them side by side on the same page (using Views) in virtually any context or use-case.