This patch adds most of the fixes to enable secure boot on the LX2160A
COM express -

1. The atf patches fixes the efuse fip fuse loading, and setting of ppwm
register and then gpio handling
2. The u-boot patches adds the secureboot defconfig, and then SVR_WO_E
mask fix
3. Patches for runme.sh script; for building the secure image run with
'SECURE=true ./runme.sh'

The missing piece is u-boot esbc validate code that completes the chain
of trust boot (COT).
Signed-off-by: Rabeeh Khoury <rabeeh@solid-run.com>