Commit 5ef46664a2 share code between produce
wizard and workorder. Field final_lot_id is now commonly used but not very
well named. This commit rename it into finished_lot_id as it represent the
lot number of the finished product.
Task : 1998064
closes odoo/odoo#32761
Signed-off-by: Simon Lejeune (sle) <sle@openerp.com>