nxp lx2160a-aqds: new plat based on soc lx2160a

New NXP platform lx2160a-qds:
- Based SoC lx2160a
- Board specific tuning for DDR init.
- Board specific Flash details.

Signed-off-by: Udit Agarwal <udit.agarwal@nxp.com>
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: I500ddbe9e56c4af5f955da6ecbd4ddc5fbe89a12
6 files changed