uboot-imx

MLK-12500-1 HAB: Add kernel image authentication in image loading

To support the trust boot chain, we integrate the authentication
into the kernel image loading process. The kernel image will be verified
at its load address. So when signing the kernel image, we need to
use this load address which may change on different platforms.

Signed-off-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit 3c118b8d6bbe1a25ca8c8bafeb528309f16fc73d)
(cherry picked from commit fd9a9759ed9b3a9fc26b18aff00880382213b1ca)
(cherry picked from commit 98d4faefdb83579d4a5a170e06af5efb64ad2b3c)