MT#11147 Add possibility to have some field extensions of the same model

Change-Id: Id2525047ff7f1993b081ed69ee91099af4b5d4e8

db_scripts/diff/15155.down

@@ -0,0 +1,6 @@
+SET AUTOCOMMIT=0;
+USE provisioning;
+
+alter table autoprov_field_device_lines drop column extension_unit;
+
+COMMIT;

db_scripts/diff/15155.up

@@ -0,0 +1,6 @@
+SET AUTOCOMMIT=0;
+USE provisioning;
+
+alter table autoprov_field_device_lines add column extension_unit tinyint  unsigned not null default 0;
+
+COMMIT;