Add P2040 SoC specific information:
* LIODN setup
* Portal configuration
* etc

Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>