[S390] convert sclp printks to pr_xxx macros.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --cc drivers/s390/char/sclp_cmd.c
Simple merge

diff --cc drivers/s390/char/sclp_config.c
Simple merge

diff --cc drivers/s390/char/sclp_cpi_sys.c
Simple merge

diff --cc drivers/s390/char/sclp_sdias.c
Simple merge