[FIX] base: enforce tree view on change.password.wizard

No view is available for the mobile form of change.password.wizard. The
default behavior of the framework is to generate one using the backend
model. This result on showing some hidden fields to the user, some of
them (like in this case `Wizard Id`) is impossible to fill in.

opw-3027797

closes odoo/odoo#107857

Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>