MA-15142 Support secure attestation provision

MA-15142 Support secure attestation provision

In host end, need encrypt the attestation keys and certs
by manufacture protection public key though  AES-128-ECB.
Then use below 4 set of commands to provision encrypted
RSA attestation and EC attestation:
  * $fastboot stage atte_rsa_key.bin
  * $fastboot oem set-rsa-atte-key-enc
  * $fastboot stage atte_rsa_cert.bin
  * $fastboot oem append-rsa-atte-cert-enc
  * $fastboot stage atte_ec_key.bin
  * $fastboot oem set-ec-atte-key-enc
  * $fastboot stage atte_ec_cert.bin
  * $fastboot oem append-ec-atte-cert-enc

Change-Id: I8a7c64004a17f7dde89f28c3123a2e2b1a6d3346
Signed-off-by: Haoran.Wang <elven.wang@nxp.com>