MT#4685 Don't tie firmware to profile.

That way, you can upload multiple firmwares, and ngcp-panel
will serve the next or latest one, depending on the currently
running one.

db_scripts/diff/15030.up

@@ -0,0 +1,7 @@
+USE provisioning;
+
+SET FOREIGN_KEY_CHECKS=0;
+alter table autoprov_profiles drop foreign key fk_profile_firmware_idx;
+alter table autoprov_profiles drop column firmware_id;
+alter table autoprov_firmwares add key version_idx(device_id, version);
+SET FOREIGN_KEY_CHECKS=1;