[REF] base: update peruvian currency symbol
[REF] base: update peruvian currency symbol

- Currency symbol position is set before the amount, not after
- Since last month 2015 (see https://es.wikipedia.org/wiki/Sol_(moneda_del_Per%C3%BA) )
the currency passed from S/. to S/ (without the dot)

Closes #14370

ygol/odoo,dfang/odoo,hip-odoo/odoo,dfang/odoo,ygol/odoo,dfang/odoo,dfang/odoo,hip-odoo/odoo,ygol/odoo,ygol/odoo,hip-odoo/odoo,ygol/odoo,dfang/odoo,ygol/odoo,hip-odoo/odoo,dfang/odoo,hip-odoo/odoo,ygol/odoo,hip-odoo/odoo