nxp lx2162aqds: new plat based on soc lx2160a

New NXP platform lx2162aqds:
- 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: I53bfff85398313082db77c77625cb2d40cd9b1b1
6 files changed