s390/crypto: ghash: Use -ENODEV instead of -EOPNOTSUPP

Let's use the error value that is typically used if HW support is not
available when trying to load a module - this is also what systemd's
systemd-modules-load.service expects.
Reviewed-by: NCornelia Huck <cohuck@redhat.com>
Reviewed-by: NHarald Freudenberger <freude@linux.ibm.com>
Signed-off-by: NDavid Hildenbrand <david@redhat.com>
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>

arch/s390/crypto/ghash_s390.c

@@ -137,7 +137,7 @@ static struct shash_alg ghash_alg = {
 static int __init ghash_mod_init(void)
 {
 	if (!cpacf_query_func(CPACF_KIMD, CPACF_KIMD_GHASH))
-		return -EOPNOTSUPP;
+		return -ENODEV;
 
 	return crypto_register_shash(&ghash_alg);
 }