linux-phytec-ti

crypto: sa2ul: Add hmac(sha256) HMAC algorithm support

HMAC hash-based message authentication code) is a specific type of
message authentication code (MAC) involving a cryptographic hash
function and a secret cryptographic key. It may be used to
simultaneously verify both the data integrity and the authentication
of a message, as with any MAC. Add hmac(sha256) HMAC algorithm support
and the message digest size is 32 bytes.

Signed-off-by: Keerthy <j-keerthy@ti.com>