qapi/crypto: Rename QCryptoAkCipherAlgorithm to *Algo, and drop prefix

qapi/crypto: Rename QCryptoAkCipherAlgorithm to *Algo, and drop prefix

QAPI's 'prefix' feature can make the connection between enumeration
type and its constants less than obvious.  It's best used with
restraint.

QCryptoAkCipherAlgorithm has a 'prefix' that overrides the generated
enumeration constants' prefix to QCRYPTO_AKCIPHER_ALG.

We could simply drop 'prefix', but then the prefix becomes
QCRYPTO_AK_CIPHER_ALGORITHM, which is rather long.

We could additionally rename the type to QCryptoAkCipherAlg, but I
think the abbreviation "alg" is less than clear.

Rename the type to QCryptoAkCipherAlgo instead.  The prefix becomes
QCRYPTO_AK_CIPHER_ALGO.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20240904111836.3273842-15-armbru@redhat.com>