Peng Fan authored Sep 25, 2019 and Stefano Babic committed Nov 03, 2019

Add function and new command "auth_cntr" for secure boot support.
When booting with life cycle set to OEM closed, we need to use
this function to authenticate the OS container and load kernel & FDT
from OS container to their destination.

Also add image authentication call when loading container images.

Users can set CONFIG_AHAB_BOOT=y to enable the feature. It is not
set at default.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>