feat(intel): support ECDSA HASH Signing

Supporting the command to send digital signature signing
request on a data blob. This include ECC algorithm such as
NISP P-256, NISP P-384, Brainpool 256 and, Branpool 384

Signed-off-by: Boon Khai Ng <boon.khai.ng@intel.com>
Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
Change-Id: I12cf0f1ceaf07c33a110eae398d3ad82a9b13d38
5 files changed