TT#19459 add provisioning.voip_cf_source_sets.mode column

* enum: whitelist, blacklist
    * default: whitelist

Change-Id: I529153a83ea72d046e85f6424c05b8b2a8573975

db_scripts/diff/15346.down

@@ -0,0 +1,3 @@
+use provisioning;
+
+ALTER TABLE voip_cf_source_sets DROP COLUMN mode;

db_scripts/diff/15346.up

@@ -0,0 +1,3 @@
+use provisioning;
+
+ALTER TABLE voip_cf_source_sets ADD COLUMN mode ENUM('whitelist','blacklist') NOT NULL DEFAULT 'whitelist';