CLOUDSTACK-6603 [Upgrade]DB Exception while Autoscale monitoring after upgrading from 4.3 to 4.4

(cherry picked from commit c282bb3)

Author: rajesh-battala

setup/db/db/schema-40to410.sql

@@ -367,7 +367,6 @@ CREATE TABLE `cloud`.`autoscale_vmgroups` (
   `max_members` int unsigned NOT NULL,
   `member_port` int unsigned NOT NULL,
   `interval` int unsigned NOT NULL,
-  `last_interval` datetime DEFAULT NULL,
   `profile_id` bigint unsigned NOT NULL,
   `state` varchar(255) NOT NULL COMMENT 'enabled or disabled, a vmgroup is disabled to stop autoscaling activity',
   `created` datetime NOT NULL COMMENT 'date created',

setup/db/db/schema-430to440.sql

@@ -657,6 +657,7 @@ ALTER TABLE `cloud`.`vpc` ADD COLUMN `display` tinyint(1) NOT NULL DEFAULT '1' C
 ALTER TABLE `cloud`.`firewall_rules` ADD COLUMN `display` tinyint(1) NOT NULL DEFAULT '1' COMMENT 'True if the rule can be displayed to the end user';
 ALTER TABLE `cloud`.`autoscale_vmgroups` ADD COLUMN `display` tinyint(1) NOT NULL DEFAULT '1' COMMENT 'True if the entry can be displayed to the end user';
 ALTER TABLE `cloud`.`autoscale_vmprofiles` ADD COLUMN `display` tinyint(1) NOT NULL DEFAULT '1' COMMENT 'True if the entry can be displayed to the end user';
+ALTER TABLE `cloud`.`autoscale_vmgroups` ADD COLUMN `last_interval` datetime NULL DEFAULT NULL COMMENT 'last updated time';
 ALTER TABLE `cloud`.`network_acl_item` ADD COLUMN `display` tinyint(1) NOT NULL DEFAULT '1' COMMENT 'True if the entry can be displayed to the end user';
 ALTER TABLE `cloud`.`network_acl` ADD COLUMN `display` tinyint(1) NOT NULL DEFAULT '1' COMMENT 'True if the entry can be displayed to the end user';
 ALTER TABLE `cloud`.`remote_access_vpn` ADD COLUMN `display` tinyint(1) NOT NULL DEFAULT '1' COMMENT 'True if the entry can be displayed to the end user';