TT#118950 add missing voip_cf_mapping index/constraint

* add voip_cf_mappings key to source_set_id
* add voip_cf_mappings constraint to voip_cf_source_sets

Change-Id: Ibe6e5ffc7aadb688b5dc539adbdfd27e912ad9f4

db_scripts/diff/15673.down

@@ -0,0 +1,5 @@
+use provisioning;
+
+ALTER TABLE voip_cf_mappings
+  DROP KEY `cfmap_sset_idx`,
+  DROP CONSTRAINT `vcm_sourceset_ref`;

db_scripts/diff/15673.up

@@ -0,0 +1,5 @@
+use provisioning;
+
+ALTER TABLE voip_cf_mappings
+  ADD KEY `cfmap_sset_idx` (`source_set_id`),
+  ADD CONSTRAINT `vcm_sourceset_ref` FOREIGN KEY (`source_set_id`) REFERENCES `voip_cf_source_sets` (`id`) ON DELETE CASCADE ON UPDATE CASCADE;