mlxsw: reg: Extend MDDQ device_info by FW version fields

Add FW version fields to MDDQ device_info.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>