[BUG] mconfigptr CSR is not implemented

Created by: ASintzoff

Is there an existing CVA6 bug for this?

• I have searched the existing bug issues

Bug Description

In version 1.12 of Machine ISA module (RISC-V privileged architecture version 20211203), the mandatory CSR mconfigptr is defined.

This CSR is missing in the current CVA6 RTL.