feat(intel): support ECDH request

This command sends the request on generating a share secret on
Diffie-Hellman key exchange.

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: Ic7c8470cf036ea8c17bf87401f49936950b3e1d6
5 files changed