When using the new dualroot chain of trust, a new root of trust key is
needed to authenticate the images belonging to the platform owner.
Provide a development one to deploy this on Arm platforms.
Change-Id: I481145e09aa564822d474cb47d38ec211dd24efd
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Sandrine Bailleux