s390/sclp: use -EOPNOTSUPP instead of -ENOSYS

The return value was only internally used, so it's ok to change.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2 files changed