[FIX] delivery: description of the delivery method on SO line
[FIX] delivery: description of the delivery method on SO line

Backport of 610b813c87b.

In this way the description of the delivery method can be used on a SO
line. If the description wasn't set, the name of the delivery method
will be used.

opw 2000169

closes odoo/odoo#33551

Signed-off-by: Nans Lefebvre (len) <a573b540d2dde90ba6da3b9d6286c8ec60c10044@odoo.com>
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo