feat(intel): support ECDSA SHA-2 Data Signing

This command support ECC based signing on a blob. Supported ECC algorithm
are NISP P-256, NISP P-384, Brainpool 256 and Brainpool 384.

Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com>
Signed-off-by: Boon Khai Ng <boon.khai.ng@intel.com>
Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
Change-Id: I82f95ddafa6b62f8cd882fce9a3e63e469c85067
5 files changed