NXP lx2160a-rdb: new plat based on SoC lx2160a

New NXP platform lx2160a-rdb(Reference Design Board):
- 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: I9c10dac9d5e67d44a2d94a7a27812220fdcc6ae3
6 files changed