fix sql

Author: DaanHoogland

engine/schema/src/main/java/com/cloud/upgrade/DatabaseUpgradeChecker.java

@@ -462,7 +462,7 @@ private void checkIfStandalone() throws CloudRuntimeException {
         boolean standalone = Transaction.execute(new TransactionCallback<>() {
             @Override
             public Boolean doInTransaction(TransactionStatus status) {
-                String sql = "SELECT COUNT(*) FROM `cloud`.`management_server` WHERE `status` = 'UP'";
+                String sql = "SELECT COUNT(*) FROM `cloud`.`mshosts` WHERE `state` = 'UP'";
                 try (Connection conn  = TransactionLegacy.getStandaloneConnection();
                      PreparedStatement pstmt = conn.prepareStatement(sql);
                      ResultSet rs = pstmt.executeQuery()) {