[S390] sclp_cpi module license.

sclp_cpi is GPL. Make the module not taint the kernel
Signed-off-by: NChristian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

drivers/s390/char/sclp_cpi.c

@@ -49,6 +49,8 @@ static struct sclp_register sclp_cpi_event =
 	.send_mask = EvTyp_CtlProgIdent_Mask
 };
 
+MODULE_LICENSE("GPL");
+
 MODULE_AUTHOR(
 	"Martin Peschke, IBM Deutschland Entwicklung GmbH "
 	"<mpeschke@de.ibm.com>");