auth_admin_passkey new API fixes

[dvdhinesh]

I am facing an Internal server error when testing this PR on Runbot.

Issue:
When a user login with the same password as admin, it tries to send an email for intimation.

Traceback:

Traceback (most recent call last):
result = dispatch(method, params)
return fn(*params)
return res_users.authenticate(db, login, password, user_agent_env)
self._send_email_same_password(cr, login)
return old_api(self, *args, **kwargs)
TypeError: _send_email_same_password() takes exactly 2 arguments (3 given)