fsl_sec: fix register layout on Layerscape architectures

fsl_sec: fix register layout on Layerscape architectures

On Layerscape architectures the SEC memory map is 1MB and the
register blocks contained in it are 64KB aligned, not 4KB as
the ccsr_sec structure currently assumes. Fix the layout of
the structure for these architectures.

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Reviewed-by: Horia Geanta <horia.geanta@nxp.com>
Reviewed-by: Bharat Bhushan <bharat.bhushan@nxp.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>