s390/time: rename tod clock access functions

Fix name clash with some common code device drivers and add "tod"
to all tod clock access function names.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index c8faf62..986ef6a 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -962,9 +962,9 @@
 			atomic_inc(&chpid_reset_count);
 	}
 	/* Wait for machine check for all channel paths. */
-	timeout = get_clock() + (RCHP_TIMEOUT << 12);
+	timeout = get_tod_clock() + (RCHP_TIMEOUT << 12);
 	while (atomic_read(&chpid_reset_count) != 0) {
-		if (get_clock() > timeout)
+		if (get_tod_clock() > timeout)
 			break;
 		cpu_relax();
 	}