Use C99 initializers for the various FOO_METHOD structs. More readable, and

Use C99 initializers for the various FOO_METHOD structs. More readable, and
avoid unreadable/unmaintainable constructs like that:

const EVP_PKEY_ASN1_METHOD cmac_asn1_meth =
        {
        EVP_PKEY_CMAC,
        EVP_PKEY_CMAC,
        0,

        "CMAC",
        "OpenSSL CMAC method",

        0,0,0,0,

        0,0,0,

        cmac_size,
        0,
        0,0,0,0,0,0,0,

        cmac_key_free,
        0,
        0,0
        };

ok matthew@ deraadt@