Attest: Init hash operation before calling setup

Initialises the PSA hash operation before calling psa_hash_setup,
rather than copying the handle out of the hash context, in
t_cose_crypto_hash_start.

Change-Id: I7e8c8199c6c87f20776a83f164d9a3ee4fd8521f
Signed-off-by: Jamie Fox <jamie.fox@arm.com>
1 file changed