fix api host model maintain type
fix api host model maintain type

Error will occur when get hostgroup info by id:

  sql: Scan error on column index 5: converting driver.Value type int64 ("1497951907") to a uint16: value out of range

jojohappy/falcon-plus,open-falcon/falcon-plus,taomaree/falcon-plus,taomaree/falcon-plus,jojohappy/falcon-plus,taomaree/falcon-plus,open-falcon/falcon-plus,jojohappy/falcon-plus,open-falcon/falcon-plus,open-falcon/falcon-plus,open-falcon/falcon-plus,taomaree/falcon-plus,taomaree/falcon-plus,jojohappy/falcon-plus,jojohappy/falcon-plus,jojohappy/falcon-plus,taomaree/falcon-plus