crypto: tcrypt - fix printed skcipher [a]sync mode

When running tcrypt skcipher speed tests, logs contain things like:
testing speed of async ecb(des3_ede) (ecb(des3_ede-generic)) encryption
or:
testing speed of async ecb(aes) (ecb(aes-ce)) encryption

The algorithm implementations are sync, not async.
Fix this inaccuracy.

Fixes: 7166e589

 ("crypto: tcrypt - Use skcipher")
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>