Add a generic Arm CCA attestation library driver to interface with the
PSA delegated attestation partition APIs that use RSE to fetch the
platform attestation token and Realm attestation key.
Signed-off-by: Rohit Mathew <rohit.mathew@arm.com>
Signed-off-by: Vivek Gautam <vivek.gautam@arm.com>
Change-Id: I882273e97567cc068f90d2ef089410f3a93c6b00
