crypto: skcipher - Fix corner case in crypto_lookup_skcipher

crypto: skcipher - Fix corner case in crypto_lookup_skcipher

Orabug: 25243093

When the user explicitly states that they don't care whether the
algorithm has been tested (type = CRYPTO_ALG_TESTED and mask = 0),
there is a corner case where we may erroneously return ENOENT.

This patch fixes it by correcting the logic in the test.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
(cherry picked from commit 26739535206e819946b0740347c09c94c4e48ba9)
Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>