[FIX] delivery: Many fields still available for editing after delivery is done
[FIX] delivery: Many fields still available for editing after delivery is done

carrier_id, carrier_tracking_ref and number_of_packages must be in readonly if
the stock.picking is in done state.

opw:683810

storm-computers/odoo,ygol/odoo,dfang/odoo,laslabs/odoo,laslabs/odoo,Elico-Corp/odoo_OCB,ygol/odoo,hip-odoo/odoo,dfang/odoo,dfang/odoo,dfang/odoo,Elico-Corp/odoo_OCB,bplancher/odoo,dfang/odoo,ygol/odoo,laslabs/odoo,bplancher/odoo,storm-computers/odoo,microcom/odoo,hip-odoo/odoo,Elico-Corp/odoo_OCB,hip-odoo/odoo,hip-odoo/odoo,microcom/odoo,storm-computers/odoo,hip-odoo/odoo,bplancher/odoo,Elico-Corp/odoo_OCB,microcom/odoo,hip-odoo/odoo,bplancher/odoo,ygol/odoo,storm-computers/odoo,ygol/odoo,microcom/odoo,Elico-Corp/odoo_OCB,Elico-Corp/odoo_OCB,ygol/odoo,storm-computers/odoo,laslabs/odoo,microcom/odoo,ygol/odoo,laslabs/odoo,laslabs/odoo,storm-computers/odoo,microcom/odoo,bplancher/odoo,bplancher/odoo,dfang/odoo