nxp: adding support of soc lx2160a

* NXP SoC is 16 A-72 core SoC.
* SoC specific defines are defined in:
  - soc.def
  - soc.h
* Called for BL2 and BL31 setup, SoC specific setup are implemented in:
  - soc.c
* platform specific helper functions implemented at:
  - aarch64/lx2160a_helpers.S
* platform specific functions used by 'plat/nxp/commpon/psci',
  etc. are implemented at:
  - aarch64/lx2160a.S
* platform specific implementation for handling PSCI_SYSTEM_RESET2:
  - aarch64/lx2160a_warm_rst.S

Signed-off-by: rocket <rod.dorris@nxp.com>
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: Ib40086f9d9079ed9b22967baff518c6df9f408b8
7 files changed