[S390] drivers/s390/: Spelling fixes

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 44adf84..6038d91 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -1542,7 +1542,7 @@
 	prssdp = (struct dasd_psf_prssd_data *) cqr->data;
 	memset(prssdp, 0, sizeof (struct dasd_psf_prssd_data));
 	prssdp->order = PSF_ORDER_PRSSD;
-	prssdp->suborder = 0x01;	/* Perfomance Statistics */
+	prssdp->suborder = 0x01;	/* Performance Statistics */
 	prssdp->varies[1] = 0x01;	/* Perf Statistics for the Subsystem */
 
 	ccw = cqr->cpaddr;