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mbedtls_cipher_setup_psa() should return MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE when the requested cipher is not supported by PSA, so that the caller can try the original mbedtls_cipher_setup() instead. The previous version of mbedtls_cipher_setup_psa(), however, only attempted to translate the cipher mode (GCM, CCM, CBC, ChaChaPoly, Stream), but didn't consider the underlying cipher primitive. Hence, it wouldn't fail when attempting to setup a cipher context for, say, 3DES-CBC, where CBC is currently supported by PSA but 3DES isn't. This commit adds a check to mbedtls_cipher_setup_psa() for whether the requested cipher primitive is available in the underlying PSA Crypto implementation, and fails cleanly with MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE if it is isn't.