Get packages on CMR from order line origin.

This commit refs #16906

load.py

@@ -965,6 +965,9 @@ class TransportReportMixin(object):
     def product_packages(cls, product_key, origins, language):
         if origins[0].__name__ == 'stock.unit_load':
             return sum(ul.cases_quantity for ul in origins) or None
+        elif origins[0].__name__ == 'carrier.load.order.line':
+            return sum(getattr(o.origin, 'cases_quantity', 0) or 0
+                for o in origins if o.origin) or None
         return super().product_packages(product_key, origins, language)