Corrected SQL to use correct end for manufacturer

inventory_provider/db/opsdb.py

@@ -120,7 +120,7 @@ retrieve_services_query = """SELECT *
                       INNER JOIN equipment_card ec_b
                         ON ec_b.absid = cc.PTR_card_b
                       LEFT JOIN organisation o
-                        ON o.absid = ec_a.manufacturer
+                        ON o.absid = ec_b.manufacturer
                       LEFT JOIN port_plugin pp_a
                         ON pp_a.PTR_card = cc.PTR_card_a
                          AND pp_a.port = cc.port_a