TT#16809 add APNS type DB field for push registrations

Change-Id: I915b990e317d12283f5c0533ac1a9293257ca56f

db_scripts/diff/15342.down

@@ -0,0 +1,3 @@
+use kamailio;
+
+alter table mobile_push_registrations drop column `apns_type`;

db_scripts/diff/15342.up

@@ -0,0 +1,5 @@
+use kamailio;
+
+alter table mobile_push_registrations add column `apns_type` varchar(255) not null default '' after device_id,
+                                      drop key `subscriber_id`,
+                                      add key `subscriber_id` (`subscriber_id`, `apns_type`);