TT#12593 add voip_fax_preferences t38 ecm

* add t38 preference to enable/disable t38 support per subscriber
    * add ecm preference to enable/disable ecm support per subscriber

Change-Id: I3ae69fa49c952732c012c5fd385104e5ebdc92fa

db_scripts/diff/15337.down

@@ -0,0 +1,3 @@
+USE provisioning;
+
+ALTER TABLE voip_fax_preferences DROP t38, DROP ecm;

db_scripts/diff/15337.up

@@ -0,0 +1,5 @@
+USE provisioning;
+
+ALTER TABLE voip_fax_preferences
+    ADD t38 tinyint(1) NOT NULL DEFAULT '1',
+    ADD ecm tinyint(1) NOT NULL DEFAULT '1';